Singular and Plural Nouns Use the Flashcard game to see if you can spell the plural form of the word. Or play Concentration and match the singular and plural forms of words. Or do the word serch and find all the singular an plural forms. Tools A B loaf loaves ranch ranches sheep sheep man men woman women child children mouse mice foot feet knife knives piano pianos country countries potato potatoes lady ladies chief chiefs class classes ox oxen moose moose cage cages fungus fungi hippopotamus hippopotamuses or hippopotami