diff --git a/src/Rules/English/Inflectible.php b/src/Rules/English/Inflectible.php
index a311d74..5223df3 100644
--- a/src/Rules/English/Inflectible.php
+++ b/src/Rules/English/Inflectible.php
@@ -150,6 +150,7 @@ public static function getIrregular(): iterable
         yield new Substitution(new Word('niveau'), new Word('niveaux'));
         yield new Substitution(new Word('nucleus'), new Word('nuclei'));
         yield new Substitution(new Word('numen'), new Word('numina'));
+        yield new Substitution(new Word('nursery'), new Word('nurseries'));
         yield new Substitution(new Word('oasis'), new Word('oases'));
         yield new Substitution(new Word('occiput'), new Word('occiputs'));
         yield new Substitution(new Word('octopus'), new Word('octopuses'));
@@ -175,7 +176,6 @@ public static function getIrregular(): iterable
         yield new Substitution(new Word('trilby'), new Word('trilbys'));
         yield new Substitution(new Word('turf'), new Word('turfs'));
         yield new Substitution(new Word('valve'), new Word('valves'));
-        yield new Substitution(new Word('valve'), new Word('valves')); // Duplicate
         yield new Substitution(new Word('volcano'), new Word('volcanoes'));
         yield new Substitution(new Word('wave'), new Word('waves'));
         yield new Substitution(new Word('zombie'), new Word('zombies'));
diff --git a/tests/Rules/English/EnglishFunctionalTest.php b/tests/Rules/English/EnglishFunctionalTest.php
index bb37813..7f75d6f 100644
--- a/tests/Rules/English/EnglishFunctionalTest.php
+++ b/tests/Rules/English/EnglishFunctionalTest.php
@@ -368,6 +368,7 @@ public function dataSampleWords(): array
             ['yengeese', 'yengeese'],
             ['zombie', 'zombies'],
             ['|ice', '|ices'],
+            ['nursery', 'nurseries'],
         ];
     }