the rules and the use of nouns in singular and plural

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the rules and the use of nouns in singular and plural.

person – people

mouse – mice

foot – feet

tooth – teeth

woman – women

man – men

goose – geese

child – children

Irregular nouns follow no specific rules, so it’s best to memorize these or look up the proper pluralization in the dictionary.

Plural Noun Rules for Irregular Nouns

Topic principal

Topic pr4 If the noun ends with ‑f or ‑fe, the f is often changed to ‑ve before adding the -s to form the plural version. wife – wives wolf – wolves Exceptions: roof – roofs belief – beliefs chef – chefs chief – chiefs 5 If a singular noun ends in ‑y and the letter before the -y is a consonant, change the ending to ‑ies to make the noun plural. city – cities puppy – puppies 6 If the singular noun ends in -y and the letter before the -y is a vowel, simply add an -s to make it plural. ray – rays boy – boys 7 If the singular noun ends in ‑o, add ‑es to make it plural. potato – potatoes tomato – tomatoes Exceptions: photo – photos piano – pianos halo – halos With the unique word volcano, you can apply the standard pluralization for words that end in -o or not. It’s your choice! Both of the following are correct: volcanoes volcanos 8 If the singular noun ends in ‑us, the plural ending is frequently ‑i. cactus – cacti focus – foci 9 If the singular noun ends in ‑is, the plural ending is ‑es. analysis – analyses ellipsis – ellipses 10 If the singular noun ends in ‑on, the plural ending is ‑a. phenomenon – phenomena criterion – criteriaincipal

gas –gasses

fez – fezzes

3 In some cases, singular nouns ending in -s or -z, require that you double the -s or -z prior to adding the -es for pluralization.