Nouns usually form the plural number by adding s
to the singular, such as: boy, boys; class, classes. Follow these rules to make plural nouns: (a)
Nouns that end in y
preceded by a vowel create the plural by adding s
; but nouns that end in y
preceded by a consonant, create
the plural by changing y
and adding es. Examples: alley, alleys; baby, babies; city, cities; party, parties. (b)
Nouns that end in f
form the plural by changing f
and adding s
. Examples: beef, beeves; knife, knives; wife, wives; leaf, leaves. (c)
Nouns that end in o
form the plural by adding s
according to usage. Examples: echo, echoes; hero, heroes; potato, potatoes; tornado, tornadoes; torpedo, torpedoes. EX.
The zoo has several donkeys
have gone to the dance club. EX.
The farmer fed the calves
in the evening.EX.
The cowboys performed many tricks with lassos. EX.
took charge of the horses. EX.
of people assembled outside of church. EX.
Stephen King wrote many essays. EX.
We have two surreys
for sale. EX.
trot fast. EX.
taste the best. EX.
We will divide the apple into halves. EX.
I ordered a bag of potatoes. NOTE
Other nouns that are old in the language change the main vowel to form plurals: tooth, teeth
; foot, feet
; man, men
; woman, women
; mouse, mice
; and several more.