Singular and Plural Nouns

Singular Nounsprincipaltoepicklephotograph

RuleAdd s to most nouns to make them plural.

Plural Nounsprincipalstoespicklesphotographs

Singular Nounspeachtoothbrushboxdress

RuleAdd es to most nouns ending in ch, sh, s, ss, z, or x.

Plural Nounspeachestoothbrushesboxesdresses

Singular Nounsstorybatterypuppy

RuleIf a noun ends in a consonant and y, change the y to i and add es.

Plural Nounsstoriesbatteriespuppies

Singular Nounstoymonkeyday

RuleIf a noun ends in a vowel and y, add s to make it plural.

Plural Nounstoysmonkeysdays

Singular Nounsleafwifehalfwolf

RuleSome nouns ending in f or fe are made plural by changing the f to a v and adding es.

Plural Nounsleaveswiveshalveswolves

Singular Nounsroof handkerchiefbeliefhoof

RuleSome nouns ending in f are made plural by adding s.

Plural Nounsroofshandkerchiefsbeliefshoofs

Singular Nounsradiostereopatiovideo

RuleMost nouns ending in o that have a vowel just before the o are made plural by adding s.

Plural Nounsradiosstereospatiosvideos

Singular Nounstomatopotatotornadopianocello

RuleSome nouns ending in o that have a consonant just before the o are made plural by adding es, but with others you just add s.

Plural Nounstomatoespotatoestornadoespianoscellos

Singular Nounschild mouseman

RuleA few nouns have irregular plural forms where you change the whole word.

Plural Nounschildrenmicemen

Singular Nounsfoottoothgoose

RuleIn a few nouns, you need to change the oo to ee to make the words plural.

Plural Nounsfeetteethgeese

Singular Nounssheeptroutfishdeermoose

RuleA few nouns have the same form for both the singular and plural form.

Plural Nounssheeptroutfishdeermoose