diff --git a/gulliver/methods/defaultAjax.php b/gulliver/methods/defaultAjax.php
index dd1026872..3c17efae9 100644
--- a/gulliver/methods/defaultAjax.php
+++ b/gulliver/methods/defaultAjax.php
@@ -41,7 +41,7 @@
   $xmlFile = G::getUIDName(urlDecode($_POST['form']));
   $sPath = XMLFORM_AJAX_PATH;
 
-  //if the xmlform file doesn't exists, then try with the plugins folders
+  //if the xmlform file doesn't exist, then try with the plugins folders
   if ( !is_file ( XMLFORM_AJAX_PATH . $xmlFile ) ) {
      $aux = explode ( PATH_SEP, $xmlFile );
       //check if G_PLUGIN_CLASS is defined, because publisher can be called without an environment
diff --git a/gulliver/methods/propelTableAjax.php b/gulliver/methods/propelTableAjax.php
index 00b0d16a0..edbc159bb 100644
--- a/gulliver/methods/propelTableAjax.php
+++ b/gulliver/methods/propelTableAjax.php
@@ -38,7 +38,7 @@
     if (isset($ntable->filterForm_Id) && ($ntable->filterForm_Id!=='')) {
       
       $sPath = PATH_XMLFORM;      
-       //if the xmlform file doesn't exists, then try with the plugins folders
+       //if the xmlform file doesn't exist, then try with the plugins folders
       if ( !is_file ( $sPath . G::getUIDName( $ntable->filterForm_Id ) ) ) {
         $aux = explode ( PATH_SEP, G::getUIDName( $ntable->filterForm_Id ) );
         //check if G_PLUGIN_CLASS is defined, because publisher can be called without an environment
diff --git a/rbac/public_html/sysUnnamed.php b/rbac/public_html/sysUnnamed.php
index e19862b06..1a892f83d 100644
--- a/rbac/public_html/sysUnnamed.php
+++ b/rbac/public_html/sysUnnamed.php
@@ -12,7 +12,7 @@
 
   if ( !is_file( "/shared/workflow_data/sites/".$webAddress."/db.php") ) {
  	  $server = getenv ( "SERVER_NAME");
- 	  //redirect to https in case the workspace it doesn't exists
+ 	  //redirect to https in case the workspace it doesn't exist
     if (( $server == 'www.processmaker.com' )||( $server == 'processmaker.com' ))
 	  	$COMPLETE_URI = "https://www.processmaker.com";
 	  else
diff --git a/workflow/engine/classes/class.dates.php b/workflow/engine/classes/class.dates.php
index 47ea95176..d1ff56fd1 100755
--- a/workflow/engine/classes/class.dates.php
+++ b/workflow/engine/classes/class.dates.php
@@ -457,7 +457,7 @@ class dates {
  * Returns an array with all the dates of $this->skip['List'] with its
  * year changed to $iYear.
  * Warning: Don't know what to do if change a 29-02-2004 to 29-02-2005
- *          the last one does not exists.
+ *          the last one doesn't exist.
  * @param List $iYear
  * @return array 
  */
@@ -475,7 +475,7 @@ class dates {
  * Returns an array with all the dates of $this->skip['List'] with its  
  * year changed to $iYear.
  * Warning: Don't know what to do if change a 29-02-2004 to 29-02-2005 
- *          the last one does not exists.                              
+ *          the last one doesn't exist.                              
  * @param array $iYear 
  * @param date $iDate
  * @return array 
diff --git a/workflow/engine/classes/class.derivation.php b/workflow/engine/classes/class.derivation.php
index 25e9398de..3327d9306 100644
--- a/workflow/engine/classes/class.derivation.php
+++ b/workflow/engine/classes/class.derivation.php
@@ -404,7 +404,7 @@ class Derivation
              }
            }
            else
-             throw ( new Exception("Task doesn't have a valid user in variable $variable or this variable doesn't exists.") ) ;
+             throw ( new Exception("Task doesn't have a valid user in variable $variable or this variable doesn't exist.") ) ;
            break;
 
       case 'REPORT_TO' :
diff --git a/workflow/engine/classes/class.dynaformEditor.php b/workflow/engine/classes/class.dynaformEditor.php
index f64bd9926..970d7f1cb 100755
--- a/workflow/engine/classes/class.dynaformEditor.php
+++ b/workflow/engine/classes/class.dynaformEditor.php
@@ -147,7 +147,7 @@ class dynaformEditor extends WebResource
   {
     global $G_PUBLISH;
     $script='';
-    /* Start Block: Load (Create if not exists) the xmlform */
+    /* Start Block: Load (Create if doesn't exist) the xmlform */
     $Parameters = array(
       'SYS_LANG'     => SYS_LANG,
       'URL'          => G::encrypt( $this->file , URL_KEY ),
@@ -291,7 +291,7 @@ class dynaformEditor extends WebResource
       self::_setTmpData(array('useTmpCopy'=>true));
         if (!file_exists(PATH_DYNAFORM  . $file . '.xml'))
           $this->_createDefaultXmlForm(PATH_DYNAFORM  . $file . '.xml');
-          //Creates a copy if it does not exists, else, use the old copy
+          //Creates a copy if it doesn't exist, else, use the old copy
           if (!file_exists(PATH_DYNAFORM  . $this->file . '.xml'))
             self::_copyFile(PATH_DYNAFORM  . $file . '.xml',PATH_DYNAFORM  . $this->file . '.xml');
             if (!file_exists(PATH_DYNAFORM  . $this->file . '.html')
@@ -453,7 +453,7 @@ class dynaformEditorAjax extends dynaformEditor implements iDynaformEditorAjax
   /**
    * Get the html code
    * Loads the stored HTML or the default Template if
-   * it does not exists.
+   * it doesn't exist.
    * @param object $A
    * @return code html
    */
@@ -477,7 +477,7 @@ class dynaformEditorAjax extends dynaformEditor implements iDynaformEditorAjax
     /**/
     /*
     * Loads the stored HTML or the default Template if
-    * it does not exists.
+    * it doesn't exist.
     */
       $filename = substr($form->fileName , 0, -3) .
       ( $form->type==='xmlform' ? '' : '.' . $form->type  ) . 'html';
diff --git a/workflow/engine/classes/class.pluginRegistry.php b/workflow/engine/classes/class.pluginRegistry.php
index 29d75c63a..3a1b2882c 100644
--- a/workflow/engine/classes/class.pluginRegistry.php
+++ b/workflow/engine/classes/class.pluginRegistry.php
@@ -370,7 +370,7 @@ class PMPluginRegistry {
     $res = $tar->extract ( PATH_PLUGINS );
 
     if (!file_exists(PATH_PLUGINS . $pluginFile))
-      throw ( new Exception( "File '$pluginFile' doesn't exists ") );
+      throw ( new Exception( "File '$pluginFile' doesn't exist ") );
 
     require_once ( PATH_PLUGINS . $pluginFile );
     $details = $oPluginRegistry->getPluginDetails( $pluginFile );
diff --git a/workflow/engine/classes/class.processMap.php b/workflow/engine/classes/class.processMap.php
index f66b08bc5..64e92b463 100644
--- a/workflow/engine/classes/class.processMap.php
+++ b/workflow/engine/classes/class.processMap.php
@@ -438,7 +438,7 @@ class processMap {
         G::RenderPage('publish', 'raw');
         return true;
       } else {
-        throw (new Exception('This row doesn\'t exists!'));
+        throw (new Exception('This row doesn\'t exist!'));
       }
     } catch (Exception $oError) {
       throw ($oError);
@@ -4403,7 +4403,7 @@ class processMap {
 
         return $aFields;
       } else {
-        throw (new Exception ( 'This row doesn\'t exists!' ));
+        throw (new Exception ( 'This row doesn\'t exist!' ));
       }
     } catch ( Exception $oError ) {
       throw ($oError);
diff --git a/workflow/engine/classes/class.processes.php b/workflow/engine/classes/class.processes.php
index 4fdc6b00e..c22bc0137 100644
--- a/workflow/engine/classes/class.processes.php
+++ b/workflow/engine/classes/class.processes.php
@@ -822,7 +822,7 @@ class Processes {
   }
 
  /**
-  * Update a Process register in DB, if the process doesn't exists with the same
+  * Update a Process register in DB, if the process doesn't exist with the same
   * uid of the $row['PRO_UID'] parameter the function creates a new one based
   * on the $row parameter data.
   * @param  $row array parameter with the process data
diff --git a/workflow/engine/classes/class.propelTable.php b/workflow/engine/classes/class.propelTable.php
index 56242e6ff..64b620a42 100644
--- a/workflow/engine/classes/class.propelTable.php
+++ b/workflow/engine/classes/class.propelTable.php
@@ -609,7 +609,7 @@ class propelTable
         $this->tdClass='';
         //Start Master Detail: This enable the MasterDEtail view. By JHL November 2008
         if(count($this->masterdetail)>0){
-          //TODO: Validate if there is a Field that not exists
+          //TODO: Validate if there is a Field that doesn't exist
           //TODO: Style
           //TODO: Improve Collapse function....
           foreach($this->masterdetail as $keyMasterDetail => $fieldMasterDetail){
diff --git a/workflow/engine/classes/class.wsBase.php b/workflow/engine/classes/class.wsBase.php
index f708bca81..a52e7bef8 100644
--- a/workflow/engine/classes/class.wsBase.php
+++ b/workflow/engine/classes/class.wsBase.php
@@ -97,7 +97,7 @@ class wsBase
     try {
       $uid  = $RBAC->VerifyLogin( $userid , $password);
       switch ($uid) {
-        case -1: //The user not exists
+        case -1: //The user doesn't exist
         $wsResponse = new wsResponse (3, G::loadTranslation ('ID_USER_NOT_REGISTERED'));
         break;
 
@@ -2051,7 +2051,7 @@ class wsBase
         }
       }
 
-      //finally, creating the process if the process does not exists
+      //finally, creating the process if the process doesn't exist
       if ( ! $oProcess->processExists ( $processId ) ) {
         $oProcess->createProcessFromData ($oData, $localPath . $newfilename );
       }
diff --git a/workflow/engine/classes/model/AdditionalTables.php b/workflow/engine/classes/model/AdditionalTables.php
index d1b21f030..e33de38c3 100644
--- a/workflow/engine/classes/model/AdditionalTables.php
+++ b/workflow/engine/classes/model/AdditionalTables.php
@@ -78,7 +78,7 @@ class AdditionalTables extends BaseAdditionalTables {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -190,7 +190,7 @@ public function loadByName($name) {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -226,7 +226,7 @@ public function loadByName($name) {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/AppCacheView.php b/workflow/engine/classes/model/AppCacheView.php
index 13528f5c9..aad79b086 100644
--- a/workflow/engine/classes/model/AppCacheView.php
+++ b/workflow/engine/classes/model/AppCacheView.php
@@ -1086,7 +1086,7 @@ class AppCacheView extends BaseAppCacheView {
     if ( ! $found ) {
       $filenameSql = $this->pathToAppCacheFiles . '/triggerApplicationUpdate.sql';
       if ( !file_exists ( $filenameSql ) )
-        throw ( new Exception ( "file triggerAppDelegationUpdate.sql doesn't exists ") );
+        throw ( new Exception ( "file triggerAppDelegationUpdate.sql doesn't exist ") );
       $sql = file_get_contents ( $filenameSql );
       $sql = str_replace('{lang}', $lang, $sql);      
       $stmt->executeQuery($sql);
@@ -1123,7 +1123,7 @@ class AppCacheView extends BaseAppCacheView {
     if ( ! $found ) {
       $filenameSql = $this->pathToAppCacheFiles . '/triggerApplicationDelete.sql';
       if ( !file_exists ( $filenameSql ) )
-        throw ( new Exception ( "file triggerAppDelegationDelete.sql doesn't exists ") );
+        throw ( new Exception ( "file triggerAppDelegationDelete.sql doesn't exist") );
       $sql = file_get_contents ( $filenameSql );
       $sql = str_replace('{lang}', $lang, $sql);      
       $stmt->executeQuery($sql);
diff --git a/workflow/engine/classes/model/AppDelay.php b/workflow/engine/classes/model/AppDelay.php
index b6f24074e..4f0feaf5c 100644
--- a/workflow/engine/classes/model/AppDelay.php
+++ b/workflow/engine/classes/model/AppDelay.php
@@ -84,7 +84,7 @@ class AppDelay extends BaseAppDelay {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/AppDelegation.php b/workflow/engine/classes/model/AppDelegation.php
index 618dc5a0a..d526f421b 100644
--- a/workflow/engine/classes/model/AppDelegation.php
+++ b/workflow/engine/classes/model/AppDelegation.php
@@ -151,7 +151,7 @@ class AppDelegation extends BaseAppDelegation {
         return $aFields;
       }
       else {
-        throw( new Exception( "The row '$AppUid, $sDelIndex' in table AppDelegation doesn't exists!" ));
+        throw( new Exception( "The row '$AppUid, $sDelIndex' in table AppDelegation doesn't exist!" ));
       }
     }
     catch (Exception $oError) {
@@ -188,7 +188,7 @@ class AppDelegation extends BaseAppDelegation {
       }
       else {
         $con->rollback();
-        throw(new Exception( "This AppDelegation row doesn't exists!" ));
+        throw(new Exception( "This AppDelegation row doesn't exist!" ));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/AppDocument.php b/workflow/engine/classes/model/AppDocument.php
index 384b49b48..4ea6f0838 100644
--- a/workflow/engine/classes/model/AppDocument.php
+++ b/workflow/engine/classes/model/AppDocument.php
@@ -83,7 +83,7 @@ class AppDocument extends BaseAppDocument {
         return $aFields;
       }
       else {
-        throw(new Exception('Error loading Document '.$sAppDocUid.'/'.$iVersion.'. This row doesn\'t exists!'));
+        throw(new Exception('Error loading Document '.$sAppDocUid.'/'.$iVersion.'. This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -280,7 +280,7 @@ class AppDocument extends BaseAppDocument {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -332,7 +332,7 @@ class AppDocument extends BaseAppDocument {
 
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/Content.php b/workflow/engine/classes/model/Content.php
index fa60b00b6..12a0944ba 100644
--- a/workflow/engine/classes/model/Content.php
+++ b/workflow/engine/classes/model/Content.php
@@ -101,7 +101,7 @@ class Content extends BaseContent {
   * @param string $ConId 
   * @param string $destConLang
   * @return string
-  * if the row doesn't exists, it will be created automatically, even the default 'en' language
+  * if the row doesn't exist, it will be created automatically, even the default 'en' language
   */
   function autoLoadSave($ConCategory, $ConParent, $ConId, $destConLang) {
     //search in 'en' language, the default language
diff --git a/workflow/engine/classes/model/Event.php b/workflow/engine/classes/model/Event.php
index f33f5dec6..9edf52722 100644
--- a/workflow/engine/classes/model/Event.php
+++ b/workflow/engine/classes/model/Event.php
@@ -83,7 +83,7 @@ class Event extends BaseEvent {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -317,7 +317,7 @@ class Event extends BaseEvent {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -363,7 +363,7 @@ class Event extends BaseEvent {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/Fields.php b/workflow/engine/classes/model/Fields.php
index 69c254d32..1c36fe46f 100644
--- a/workflow/engine/classes/model/Fields.php
+++ b/workflow/engine/classes/model/Fields.php
@@ -28,7 +28,7 @@ class Fields extends BaseFields {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -92,7 +92,7 @@ class Fields extends BaseFields {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -112,7 +112,7 @@ class Fields extends BaseFields {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/GroupUser.php b/workflow/engine/classes/model/GroupUser.php
index a13b998d5..a79d5dea9 100644
--- a/workflow/engine/classes/model/GroupUser.php
+++ b/workflow/engine/classes/model/GroupUser.php
@@ -91,7 +91,7 @@ class GroupUser extends BaseGroupUser {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/InputDocument.php b/workflow/engine/classes/model/InputDocument.php
index 3b67747f0..007bb14f5 100644
--- a/workflow/engine/classes/model/InputDocument.php
+++ b/workflow/engine/classes/model/InputDocument.php
@@ -70,7 +70,7 @@ class InputDocument extends BaseInputDocument {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -175,7 +175,7 @@ class InputDocument extends BaseInputDocument {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -204,7 +204,7 @@ class InputDocument extends BaseInputDocument {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/Language.php b/workflow/engine/classes/model/Language.php
index 7fd482101..893c3aae4 100644
--- a/workflow/engine/classes/model/Language.php
+++ b/workflow/engine/classes/model/Language.php
@@ -49,7 +49,7 @@ class Language extends BaseLanguage {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/OutputDocument.php b/workflow/engine/classes/model/OutputDocument.php
index 3e3b330ed..8dc6a9648 100644
--- a/workflow/engine/classes/model/OutputDocument.php
+++ b/workflow/engine/classes/model/OutputDocument.php
@@ -112,7 +112,7 @@ class OutputDocument extends BaseOutputDocument {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -219,7 +219,7 @@ class OutputDocument extends BaseOutputDocument {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -250,7 +250,7 @@ class OutputDocument extends BaseOutputDocument {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/ProcessUser.php b/workflow/engine/classes/model/ProcessUser.php
index 9fd40a3b3..2891a2768 100644
--- a/workflow/engine/classes/model/ProcessUser.php
+++ b/workflow/engine/classes/model/ProcessUser.php
@@ -79,7 +79,7 @@ class ProcessUser extends BaseProcessUser {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/ReportVar.php b/workflow/engine/classes/model/ReportVar.php
index 92020a1fb..fe39cc5d8 100644
--- a/workflow/engine/classes/model/ReportVar.php
+++ b/workflow/engine/classes/model/ReportVar.php
@@ -35,7 +35,7 @@ class ReportVar extends BaseReportVar {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -108,7 +108,7 @@ class ReportVar extends BaseReportVar {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -135,7 +135,7 @@ class ReportVar extends BaseReportVar {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/Route.php b/workflow/engine/classes/model/Route.php
index b6c1678aa..fa7a03e54 100644
--- a/workflow/engine/classes/model/Route.php
+++ b/workflow/engine/classes/model/Route.php
@@ -127,7 +127,7 @@ class Route extends BaseRoute {
         }
       }
       else {
-        throw(new Exception( "The row " . $aData['ROU_UID'] . " doesn't exists!" ));
+        throw(new Exception( "The row " . $aData['ROU_UID'] . " doesn't exist!" ));
       }
     }
     catch (Exception $oError) {
@@ -154,7 +154,7 @@ class Route extends BaseRoute {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/ShadowTable.php b/workflow/engine/classes/model/ShadowTable.php
index dfab65a72..21003deb3 100644
--- a/workflow/engine/classes/model/ShadowTable.php
+++ b/workflow/engine/classes/model/ShadowTable.php
@@ -27,7 +27,7 @@ class ShadowTable extends BaseShadowTable {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -80,7 +80,7 @@ class ShadowTable extends BaseShadowTable {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/Step.php b/workflow/engine/classes/model/Step.php
index 455445400..ad32da5af 100644
--- a/workflow/engine/classes/model/Step.php
+++ b/workflow/engine/classes/model/Step.php
@@ -238,7 +238,7 @@ class Step extends BaseStep {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/StepSupervisor.php b/workflow/engine/classes/model/StepSupervisor.php
index 46f6d3853..a69e165c6 100644
--- a/workflow/engine/classes/model/StepSupervisor.php
+++ b/workflow/engine/classes/model/StepSupervisor.php
@@ -120,7 +120,7 @@ class StepSupervisor extends BaseStepSupervisor {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/SwimlanesElements.php b/workflow/engine/classes/model/SwimlanesElements.php
index cca414e03..2eb372f0a 100644
--- a/workflow/engine/classes/model/SwimlanesElements.php
+++ b/workflow/engine/classes/model/SwimlanesElements.php
@@ -63,7 +63,7 @@ class SwimlanesElements extends BaseSwimlanesElements {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -140,7 +140,7 @@ class SwimlanesElements extends BaseSwimlanesElements {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -168,7 +168,7 @@ class SwimlanesElements extends BaseSwimlanesElements {
         return $iResult;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/classes/model/UsersProperties.php b/workflow/engine/classes/model/UsersProperties.php
index 1a01e2457..9c2fe9477 100644
--- a/workflow/engine/classes/model/UsersProperties.php
+++ b/workflow/engine/classes/model/UsersProperties.php
@@ -41,7 +41,7 @@ class UsersProperties extends BaseUsersProperties {
         return $aFields;
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
@@ -97,7 +97,7 @@ class UsersProperties extends BaseUsersProperties {
         }
       }
       else {
-        throw(new Exception('This row doesn\'t exists!'));
+        throw(new Exception('This row doesn\'t exist!'));
       }
     }
     catch (Exception $oError) {
diff --git a/workflow/engine/methods/authSources/authSources_Ajax.php b/workflow/engine/methods/authSources/authSources_Ajax.php
index 23b543583..9bb5b9b69 100644
--- a/workflow/engine/methods/authSources/authSources_Ajax.php
+++ b/workflow/engine/methods/authSources/authSources_Ajax.php
@@ -86,7 +86,7 @@ try {
           $G_PUBLISH->AddContent('propeltable', 'paged-table', 'authSources/' . $aFields['AUTH_SOURCE_PROVIDER'] . 'SearchResults', $oCriteria);
         }
         else {
-          $G_PUBLISH->AddContent('xmlform', 'xmlform', 'login/showMessage', '', array('MESSAGE' => 'File: ' . $aFields['AUTH_SOURCE_PROVIDER'] . 'SearchResults.xml' . ' not exists.'));
+          $G_PUBLISH->AddContent('xmlform', 'xmlform', 'login/showMessage', '', array('MESSAGE' => 'File: ' . $aFields['AUTH_SOURCE_PROVIDER'] . 'SearchResults.xml' . ' doesn\'t exist.'));
         }
       }
       G::RenderPage('publish', 'raw');
diff --git a/workflow/engine/methods/authSources/authSources_Edit.php b/workflow/engine/methods/authSources/authSources_Edit.php
index ada70cd37..fa6b92214 100644
--- a/workflow/engine/methods/authSources/authSources_Edit.php
+++ b/workflow/engine/methods/authSources/authSources_Edit.php
@@ -71,7 +71,7 @@
       $G_PUBLISH->AddContent('xmlform', 'xmlform', 'authSources/' . $aFields['AUTH_SOURCE_PROVIDER'] . 'Edit', '', $aFields, '../authSources/authSources_Save');
     }
     else {
-      $G_PUBLISH->AddContent('xmlform', 'xmlform', 'login/showMessage', '', array('MESSAGE' => 'File: ' . $aFields['AUTH_SOURCE_PROVIDER'] . 'Edit.xml' . ' not exists.'));
+      $G_PUBLISH->AddContent('xmlform', 'xmlform', 'login/showMessage', '', array('MESSAGE' => 'File: ' . $aFields['AUTH_SOURCE_PROVIDER'] . 'Edit.xml' . ' doesn\'t exist.'));
     }
   }
   G::RenderPage('publish','blank');
\ No newline at end of file
diff --git a/workflow/engine/methods/authSources/authSources_New.php b/workflow/engine/methods/authSources/authSources_New.php
index e6619e8ea..d4f85445b 100644
--- a/workflow/engine/methods/authSources/authSources_New.php
+++ b/workflow/engine/methods/authSources/authSources_New.php
@@ -45,7 +45,7 @@ else {
     $G_PUBLISH->AddContent('xmlform', 'xmlform', 'authSources/' . $_POST['form']['AUTH_SOURCE_PROVIDER'] . 'Edit', '', $aFields, '../authSources/authSources_Save');
   }
   else {
-    $G_PUBLISH->AddContent('xmlform', 'xmlform', 'login/showMessage', '', array('MESSAGE' => 'File: ' . $_POST['form']['AUTH_SOURCE_PROVIDER'] . 'Edit.xml' . ' not exists.'));
+    $G_PUBLISH->AddContent('xmlform', 'xmlform', 'login/showMessage', '', array('MESSAGE' => 'File: ' . $_POST['form']['AUTH_SOURCE_PROVIDER'] . 'Edit.xml' . ' doesn\'t exist.'));
   }
 }
 G::RenderPage('publish','blank');
\ No newline at end of file
diff --git a/workflow/engine/methods/dynaforms/dynaforms_FlatEditor.php b/workflow/engine/methods/dynaforms/dynaforms_FlatEditor.php
index 328f0d15e..321aec667 100644
--- a/workflow/engine/methods/dynaforms/dynaforms_FlatEditor.php
+++ b/workflow/engine/methods/dynaforms/dynaforms_FlatEditor.php
@@ -56,7 +56,7 @@ if (($RBAC_Response=$RBAC->userCanAccess("PM_FACTORY"))!=1) return $RBAC_Respons
   //Hardcode: Sample of xmlform.
     $file = $PRO_UID . '/' . 'myInfo';
 
-  /* Start Comment: If file doesn't exists, it is created */
+  /* Start Comment: If file doesn't exist, it is created */
   if (!file_exists( PATH_DYNAFORM  . $file . '.xml' )) {
     $newDoc = new Xml_Document();
     $newDoc->addChildNode( 
diff --git a/workflow/engine/methods/login/authentication.php b/workflow/engine/methods/login/authentication.php
index 4bd8ad7fb..50cf8ab85 100644
--- a/workflow/engine/methods/login/authentication.php
+++ b/workflow/engine/methods/login/authentication.php
@@ -44,7 +44,7 @@ try {
   $RBAC->cleanSessionFiles(72);
   $sPwd = 'currentPwd';
   switch ($uid) {
-    //The user does not exist
+    //The user does doesn't exist
     case -1:
       G::SendTemporalMessage ('ID_USER_NOT_REGISTERED', "warning");
       break;
diff --git a/workflow/engine/methods/processes/processes_webEntryGenerate.php b/workflow/engine/methods/processes/processes_webEntryGenerate.php
index 3392e6fbe..a67f8caba 100644
--- a/workflow/engine/methods/processes/processes_webEntryGenerate.php
+++ b/workflow/engine/methods/processes/processes_webEntryGenerate.php
@@ -87,7 +87,7 @@ try {
     
     $fileName = $pathProcess . $dynTitle . 'Post.php';
     file_put_contents ( $fileName, $template->getOutputContent () );
-    //creating the third file, only if this wsClient.php file doesn't exists.
+    //creating the third file, only if this wsClient.php file doesn't exist.
     $fileName = $pathProcess . 'wsClient.php';
     $pluginTpl = PATH_CORE . 'test' . PATH_SEP . 'unit' . PATH_SEP . 'ws' . PATH_SEP . 'wsClient.php';
     
diff --git a/workflow/engine/methods/setup/skinsExport.php b/workflow/engine/methods/setup/skinsExport.php
index ed8e3dc12..0262986f0 100755
--- a/workflow/engine/methods/setup/skinsExport.php
+++ b/workflow/engine/methods/setup/skinsExport.php
@@ -88,7 +88,7 @@
     //verify if plugin exists, 
     $pluginClassFilename = PATH_PLUGINS . $pluginName . PATH_SEP . 'class.' . $pluginName . '.php';
     if ( !is_file ( $pluginClassFilename ) ) { 
-      printf("The plugin %s does not exist in this file %s \n", pakeColor::colorize( $pluginName, 'ERROR'), pakeColor::colorize( $pluginClassFilename, 'INFO') );
+      printf("The plugin %s doesn't exist in this file %s \n", pakeColor::colorize( $pluginName, 'ERROR'), pakeColor::colorize( $pluginClassFilename, 'INFO') );
       die ;
     }
   */
diff --git a/workflow/engine/methods/tracker/authentication.php b/workflow/engine/methods/tracker/authentication.php
index 39ecabf6a..649c81e71 100644
--- a/workflow/engine/methods/tracker/authentication.php
+++ b/workflow/engine/methods/tracker/authentication.php
@@ -52,7 +52,7 @@ try {
   $uid = $oCase->verifyCaseTracker($case, $pin);
 	//print_r($uid); die;
 	switch ($uid) {
-		//The case not exists
+		//The case doesn't exist
 	  case -1:
 	    G::SendTemporalMessage ('ID_CASE_NOT_EXISTS', "error");
 	    break;
diff --git a/workflow/engine/methods/users/users_ViewResume.php b/workflow/engine/methods/users/users_ViewResume.php
index c8fd6dc47..899db0ea2 100644
--- a/workflow/engine/methods/users/users_ViewResume.php
+++ b/workflow/engine/methods/users/users_ViewResume.php
@@ -32,7 +32,7 @@ $form  = $oUser->load($uid);
 if (!isset($form['USR_RESUME']) || $form['USR_RESUME']==='') die(G::LoadTranslation('ID_WITHOUT_RESUME'));
 	$direction = PATH_IMAGES_ENVIRONMENT_FILES.$uid."/".$form['USR_RESUME'];
 if (!file_exists($direction)) {
-	die('The file "' . $direction . '"does  not exist in the server!');
+	die('The file "' . $direction . '"doesn\'t exist in the server!');
 }
 //	echo $direction ;
 	header('Pragma: ');
diff --git a/workflow/engine/test/unit/ws/reportsToTest.php b/workflow/engine/test/unit/ws/reportsToTest.php
index 8de45408e..4b75fa405 100755
--- a/workflow/engine/test/unit/ws/reportsToTest.php
+++ b/workflow/engine/test/unit/ws/reportsToTest.php
@@ -81,7 +81,7 @@
   }
   $t->is( strlen( $roleOperator ) >= 30 , true,  'role PROCESSMAKER_OPERATOR exists');
   if ( $roleOperator == '' )
-    throw ( new Exception ( "role PROCESSMAKER_OPERATOR does not exist" ) );
+    throw ( new Exception ( "role PROCESSMAKER_OPERATOR doesn't exist" ) );
   
   //checking user list 
   $users     = ws_userList();
diff --git a/workflow/public_html/skins/valida.js b/workflow/public_html/skins/valida.js
index 04b69022f..9f0f2ce50 100644
--- a/workflow/public_html/skins/valida.js
+++ b/workflow/public_html/skins/valida.js
@@ -20,13 +20,13 @@ Labels['ID_NO_ROOM_FORMS']['es'] = 'No hay sitio para m
 Labels['ID_NO_ROOM_FORMS']['en'] = 'There is no room for more forms';
 Labels['ID_PARAMETERS_NOT_EXISTS'] = new Array(2)
 Labels['ID_PARAMETERS_NOT_EXISTS']['es'] = 'No existen parámetros';
-Labels['ID_PARAMETERS_NOT_EXISTS']['en'] = 'Parameters do not exists';
+Labels['ID_PARAMETERS_NOT_EXISTS']['en'] = 'Parameters doesn\'t exist';
 Labels['ID_PARAMETER_NOT_FOUND'] = new Array(2)
 Labels['ID_PARAMETER_NOT_FOUND']['es'] = 'Parámetro requerido no encontrado';
 Labels['ID_PARAMETER_NOT_FOUND']['en'] = 'Required parameter not found';
 Labels['ID_FIELD_NOT_EXISTS'] = new Array(2)
 Labels['ID_FIELD_NOT_EXISTS']['es'] = 'No existe el campo';
-Labels['ID_FIELD_NOT_EXISTS']['en'] = 'Not exists the field';
+Labels['ID_FIELD_NOT_EXISTS']['en'] = 'Doesn\'t exist the field';
 Labels['ID_INVALID_EMAIL']= new Array(2)
 Labels['ID_INVALID_EMAIL']['es']="Email invalido";
 Labels['ID_INVALID_EMAIL']['en']="Invalid Email";
diff --git a/workflow/public_html/sysUnnamed.php b/workflow/public_html/sysUnnamed.php
index 6f0f2098f..97f680f49 100644
--- a/workflow/public_html/sysUnnamed.php
+++ b/workflow/public_html/sysUnnamed.php
@@ -12,7 +12,7 @@
 
   if ( !is_file( "/shared/workflow_data/sites/".$webAddress."/db.php") ) {
  	  $server = getenv ( "SERVER_NAME");
- 	  //redirect to https in case the workspace it doesn't exists
+ 	  //redirect to https in case the workspace it doesn't exist
     if (( $server == 'www.processmaker.com' )||( $server == 'processmaker.com' ))
 	  	$COMPLETE_URI = "https://www.processmaker.com";
 	  else