Plural Words

Plural Nouns

For the plural form of most nouns, add s.

Regular Nouns

Irregular Plurals

For nouns that end in ch, sh, x, s, z is or s sounds, add es.

For nouns ending in f or fe, change f to v and add es.

For nouns ending in o, change to oes.

But o change to os

Some nouns have different plural forms.

Nouns ending in vowels like y or o do not have definite rules.

A few nouns have the same singular and plural forms.

More Irregular Plurals

criterion - criteria

phenomenon - phenomen



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