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Nouns have both singular and plural forms. one book   two books one car   two cars To make the plural form of most nouns simply add an ~s to the end of the noun. Some nouns require that you change the ending of the word before you add an ~s. Please study the following rules carefully. They will help you learn how to correctly form plural nouns. If the noun ends with a consonant + ~y, form the plural by changing the ~y to ~i and then add ~es Examples: If the noun ends with a vowel + y, form the plural by adding ~s. Examples: If the noun ends with ~ef or ~f, form the plural by changing the ~f to ~v and then add ~s. Examples: If the noun ends with ~sh, ~ch, ~ss, ~x, form the plural by adding ~es Examples: If the noun ends with a consonant + o, form the plural by adding ~es Examples: If the noun ends in a vowel + o, form the plural by ading ~s Examples: |