diff --git a/I18n/en_US.php b/I18n/en_US.php
index 365f0b9..f7c5103 100755
--- a/I18n/en_US.php
+++ b/I18n/en_US.php
@@ -34,6 +34,29 @@
     'Enter here the keyword name in the default language (%title)' => 'Enter here the keyword name in the default language (%title)',
     'Create a new keyword' => 'Create a new keyword',
     'Delete keyword' => 'Delete keyword',
-    'Do you really want to delete this keyword and all its associations ?' => 'Do you really want to delete this keyword and all its associations ?'
+    'Do you really want to delete this keyword and all its associations ?' => 'Do you really want to delete this keyword and all its associations ?',
 
+    'Edit keyword group' => 'Edit keyword group',
+    'Keyword Groups' => 'Keyword Groups',
+    'Add a new keyword group' => 'Add a new keyword group',
+    'Browse this keyword group' => 'Browse this keyword group',
+    'Edit this keyword group' => 'Edit this keyword group',
+    'Delete this keyword group' => 'Delete this keyword group',
+    'There is no keywords group. To create a new one, click the + button above.' => 'There is no keywords group. To create a new one, click the + button above.',
+    'There is no keywords group.' => 'There is no keywords group.',
+    'Enter here the keyword group name in the default language (%title)' => 'Enter here the keyword group name in the default language (%title)',
+    'Enter here the unique identifier of the keyword group which must be use into your loops' => 'Enter here the unique identifier of the keyword group which must be use into your loops',
+    'Create a new keyword group' => 'Create a new keyword group',
+    'Delete keyword group' => 'Delete keyword group',
+    'Do you really want to delete this keyword group and all its associations ?' => 'Do you really want to delete this keyword group and all its associations ?',
+    'You must first configure keywords to use them.' => 'You must first configure keywords to use them.',
+    'Enter new keyword group position' => 'Enter new keyword group position',
+    'Edit keyword group %title' => 'Edit keyword group : <span class="label label-info">%title</span>',
+    'Edit previous keyword group' => 'Edit previous keyword group',
+    'Edit next keyword group' => 'Edit next keyword group',
+    'Keyword group created on %date_create. Last modification: %date_change' => 'Keyword group created on %date_create. Last modification: %date_change',
+    'View keyword group associations' => 'View keyword group associations',
+    'View keyword group "%title" associations' => 'View keyword group associations : <span class="label label-info">%title</span>',
+    'View previous keyword group' => 'View previous keyword group',
+    'View next keyword group' => 'View next keyword group'
 );