diff --git a/src/Symfony/Component/PropertyAccess/StringUtil.php b/src/Symfony/Component/PropertyAccess/StringUtil.php
index 50a8eb4092..dd9ee3496c 100644
--- a/src/Symfony/Component/PropertyAccess/StringUtil.php
+++ b/src/Symfony/Component/PropertyAccess/StringUtil.php
@@ -75,6 +75,9 @@ class StringUtil
         // objectives (objective), alternative (alternatives)
         array('sevit', 5, true, true, 'tive'),
 
+        // drives (drive)
+        array('sevird', 6, false, true, 'drive'),
+
         // lives (life), wives (wife)
         array('sevi', 4, false, true, 'ife'),
 
diff --git a/src/Symfony/Component/PropertyAccess/Tests/StringUtilTest.php b/src/Symfony/Component/PropertyAccess/Tests/StringUtilTest.php
index 92df8f1f73..1aff522981 100644
--- a/src/Symfony/Component/PropertyAccess/Tests/StringUtilTest.php
+++ b/src/Symfony/Component/PropertyAccess/Tests/StringUtilTest.php
@@ -20,114 +20,127 @@ class StringUtilTest extends \PHPUnit_Framework_TestCase
         // see http://english-zone.com/spelling/plurals.html
         // see http://www.scribd.com/doc/3271143/List-of-100-Irregular-Plural-Nouns-in-English
         return array(
-            array('tags', 'tag'),
+            array('accesses', 'access'),
+            array('addresses', 'address'),
+            array('agendas', 'agenda'),
+            array('alumnae', 'alumna'),
             array('alumni', 'alumnus'),
-            array('funguses', array('fungus', 'funguse', 'fungusis')),
-            array('fungi', 'fungus'),
-            array('axes', array('ax', 'axe', 'axis')),
-            array('appendices', array('appendex', 'appendix', 'appendice')),
-            array('indices', array('index', 'indix', 'indice')),
-            array('prices', array('prex', 'prix', 'price')),
-            array('indexes', 'index'),
-            array('children', 'child'),
-            array('men', 'man'),
-            array('women', 'woman'),
-            array('oxen', 'ox'),
-            array('bacteria', array('bacterion', 'bacterium')),
-            array('criteria', array('criterion', 'criterium')),
-            array('feet', 'foot'),
-            array('nebulae', 'nebula'),
-            array('babies', 'baby'),
-            array('hooves', array('hoof', 'hoove', 'hooff')),
-            array('chateaux', 'chateau'),
-            array('echoes', array('echo', 'echoe')),
             array('analyses', array('analys', 'analyse', 'analysis')),
-            array('theses', array('thes', 'these', 'thesis')),
-            array('foci', 'focus'),
-            array('focuses', array('focus', 'focuse', 'focusis')),
-            array('oases', array('oas', 'oase', 'oasis')),
-            array('matrices', array('matrex', 'matrix', 'matrice')),
-            array('matrixes', 'matrix'),
-            array('bureaus', 'bureau'),
-            array('bureaux', 'bureau'),
-            array('beaux', 'beau'),
-            array('data', array('daton', 'datum')),
-            array('phenomena', array('phenomenon', 'phenomenum')),
-            array('strata', array('straton', 'stratum')),
-            array('geese', 'goose'),
-            array('teeth', 'tooth'),
             array('antennae', 'antenna'),
             array('antennas', 'antenna'),
-            array('houses', array('hous', 'house', 'housis')),
+            array('appendices', array('appendex', 'appendix', 'appendice')),
             array('arches', array('arch', 'arche')),
             array('atlases', array('atlas', 'atlase', 'atlasis')),
+            array('axes', array('ax', 'axe', 'axis')),
+            array('babies', 'baby'),
+            array('bacteria', array('bacterion', 'bacterium')),
+            array('bases', array('bas', 'base', 'basis')),
             array('batches', array('batch', 'batche')),
-            array('bushes', array('bush', 'bushe')),
+            array('beaux', 'beau'),
+            array('bees', array('be', 'bee')),
+            array('boxes', 'box'),
+            array('boys', 'boy'),
+            array('bureaus', 'bureau'),
+            array('bureaux', 'bureau'),
             array('buses', array('bus', 'buse', 'busis')),
+            array('bushes', array('bush', 'bushe')),
             array('calves', array('calf', 'calve', 'calff')),
+            array('cars', 'car'),
+            array('cassettes', array('cassett', 'cassette')),
+            array('caves', array('caf', 'cave', 'caff')),
+            array('chateaux', 'chateau'),
+            array('cheeses', array('chees', 'cheese', 'cheesis')),
+            array('children', 'child'),
             array('circuses', array('circus', 'circuse', 'circusis')),
+            array('cliffs', 'cliff'),
             array('crises', array('cris', 'crise', 'crisis')),
+            array('criteria', array('criterion', 'criterium')),
+            array('cups', 'cup'),
+            array('data', array('daton', 'datum')),
+            array('days', 'day'),
+            array('discos', 'disco'),
+            array('drives', 'drive'),
+            array('drivers', 'driver'),
             array('dwarves', array('dwarf', 'dwarve', 'dwarff')),
+            array('echoes', array('echo', 'echoe')),
             array('elves', array('elf', 'elve', 'elff')),
             array('emphases', array('emphas', 'emphase', 'emphasis')),
             array('faxes', 'fax'),
+            array('feet', 'foot'),
+            array('foci', 'focus'),
+            array('focuses', array('focus', 'focuse', 'focusis')),
+            array('formulae', 'formula'),
+            array('formulas', 'formula'),
+            array('fungi', 'fungus'),
+            array('funguses', array('fungus', 'funguse', 'fungusis')),
+            array('garages', array('garag', 'garage')),
+            array('geese', 'goose'),
             array('halves', array('half', 'halve', 'halff')),
+            array('hats', 'hat'),
             array('heroes', array('hero', 'heroe')),
+            array('hippopotamuses', array('hippopotamus', 'hippopotamuse', 'hippopotamusis')), //hippopotami
             array('hoaxes', 'hoax'),
+            array('hooves', array('hoof', 'hoove', 'hooff')),
+            array('houses', array('hous', 'house', 'housis')),
+            array('indexes', 'index'),
+            array('indices', array('index', 'indix', 'indice')),
+            array('ions', 'ion'),
             array('irises', array('iris', 'irise', 'irisis')),
             array('kisses', 'kiss'),
-            array('addresses', 'address'),
-            array('accesses', 'access'),
             array('knives', 'knife'),
-            array('lives', 'life'),
+            array('lamps', 'lamp'),
+            array('leaves', array('leaf', 'leave', 'leaff')),
             array('lice', 'louse'),
+            array('lives', 'life'),
+            array('matrices', array('matrex', 'matrix', 'matrice')),
+            array('matrixes', 'matrix'),
+            array('men', 'man'),
             array('mice', 'mouse'),
+            array('moves', 'move'),
+            array('nebulae', 'nebula'),
             array('neuroses', array('neuros', 'neurose', 'neurosis')),
+            array('oases', array('oas', 'oase', 'oasis')),
+            array('objectives', 'objective'),
+            array('oxen', 'ox'),
+            array('parties', 'party'),
+            array('phenomena', array('phenomenon', 'phenomenum')),
+            array('photos', 'photo'),
+            array('pianos', 'piano'),
             array('plateaux', 'plateau'),
             array('poppies', 'poppy'),
+            array('prices', array('prex', 'prix', 'price')),
             array('quizzes', 'quiz'),
-            array('scarves', array('scarf', 'scarve', 'scarff')),
-            array('spies', 'spy'),
-            array('stories', 'story'),
-            array('syllabi', 'syllabus'),
-            array('thieves', array('thief', 'thieve', 'thieff')),
-            array('waltzes', array('waltz', 'waltze')),
-            array('wharves', array('wharf', 'wharve', 'wharff')),
-            array('caves', array('caf', 'cave', 'caff')),
-            array('staves', array('staf', 'stave', 'staff')),
-            array('wives', 'wife'),
-            array('ions', 'ion'),
-            array('bases', array('bas', 'base', 'basis')),
-            array('cars', 'car'),
-            array('cassettes', array('cassett', 'cassette')),
-            array('lamps', 'lamp'),
-            array('hats', 'hat'),
-            array('cups', 'cup'),
-            array('boxes', 'box'),
-            array('sandwiches', array('sandwich', 'sandwiche')),
-            array('suitcases', array('suitcas', 'suitcase', 'suitcasis')),
-            array('roses', array('ros', 'rose', 'rosis')),
-            array('garages', array('garag', 'garage')),
-            array('shoes', array('sho', 'shoe')),
-            array('days', 'day'),
-            array('boys', 'boy'),
-            array('roofs', 'roof'),
-            array('cliffs', 'cliff'),
-            array('sheriffs', 'sheriff'),
-            array('discos', 'disco'),
-            array('pianos', 'piano'),
-            array('photos', 'photo'),
-            array('trees', array('tre', 'tree')),
-            array('bees', array('be', 'bee')),
-            array('cheeses', array('chees', 'cheese', 'cheesis')),
             array('radii', 'radius'),
-            array('objectives', 'objective'),
-            array('moves', 'move'),
+            array('roofs', 'roof'),
+            array('roses', array('ros', 'rose', 'rosis')),
+            array('sandwiches', array('sandwich', 'sandwiche')),
+            array('scarves', array('scarf', 'scarve', 'scarff')),
+            array('schemas', 'schema'), //schemata
+            array('sheriffs', 'sheriff'),
+            array('shoes', array('sho', 'shoe')),
+            array('spies', 'spy'),
+            array('staves', array('staf', 'stave', 'staff')),
+            array('stories', 'story'),
+            array('strata', array('straton', 'stratum')),
+            array('suitcases', array('suitcas', 'suitcase', 'suitcasis')),
+            array('syllabi', 'syllabus'),
+            array('tags', 'tag'),
+            array('teeth', 'tooth'),
+            array('theses', array('thes', 'these', 'thesis')),
+            array('thieves', array('thief', 'thieve', 'thieff')),
+            array('trees', array('tre', 'tree')),
+            array('waltzes', array('waltz', 'waltze')),
+            array('wives', 'wife'),
 
             // test casing: if the first letter was uppercase, it should remain so
             array('Men', 'Man'),
             array('GrandChildren', 'GrandChild'),
             array('SubTrees', array('SubTre', 'SubTree')),
+
+            // Known issues
+            //array('insignia', 'insigne'),
+            //array('insignias', 'insigne'),
+            //array('rattles', 'rattle'),
         );
     }
 
@@ -136,6 +149,13 @@ class StringUtilTest extends \PHPUnit_Framework_TestCase
      */
     public function testSingularify($plural, $singular)
     {
-        $this->assertEquals($singular, StringUtil::singularify($plural));
+        $single = StringUtil::singularify($plural);
+        if (is_string($singular) && is_array($single)) {
+            $this->fail("--- Expected\n`string`: " . $singular . "\n+++ Actual\n`array`: " . implode(', ', $single));
+        } elseif (is_array($singular) && is_string($single)) {
+            $this->fail("--- Expected\n`array`: " . implode(', ', $singular) . "\n+++ Actual\n`string`: " . $single);
+        }
+
+        $this->assertEquals($singular, $single);
     }
 }