Plural form of nouns

When a noun refers to one person or thing, it is singular in number. When a noun refers to more than one person or thing, it isplural in number. Nouns have special forms to show these distinctions, as you will see from the following illustrations:

The plurals of nouns are formed in a number of different ways. You should be familiar with the following methods of forming the plurals of nouns. Words taken from foreign languages usually retain their foreign plurals. Some nouns are used only in the plural.