myQBook English Grammar Concepts

Changing Singular Nouns to Plural Nouns

Most common nouns other than qualities or ideas have both singular and plural forms. Therefore, it is important to learn how to convert a singular noun to a plural noun. The following are the rules to change singular nouns to plural nouns.

A.      Add “s” to a singular noun for all nouns except as noted below. For example: desk → desks.

B.      Add “es” to a singular noun when the noun ends in -s, -sh, -ch, -o or -x. For example:
class → classes
brush → brushes
match → matches
potato → potatoes
tax → taxes

C.      Remove the “y” and add “ies” to a singular noun ending in -y where the -y is preceded by a consonant. For example:
baby → babies
story → stories

However, when the -y is preceded by a vowel, only add -s. For example:
toy → toys
valley → valleys

D.      Some nouns look plural but are singular. For example: physics, news, politics, tongs.

E.       Some nouns are irregular. They do not follow any of the rules above. Irregular nouns can be made plural by changing or adding one or a few letters to them. For example:
man → men
child → children

Some irregular nouns are exactly the same as singular and plural. For example:
moose → moose
fish → fish


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Singular and Plural nouns
Countable and Uncountable Nouns

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