Possessives. Form the possessive case of a singular noun by adding 's (even if the word ends in s). Form the possessive case of a plural noun by adding an apostrophe after the final letter if it is an s or by adding 's if the final letter is not an s. Remember: the apostrophe never designates the plural form of a noun.

What is an example of a plural possessive case?

When a plural noun does not end with an "s," add an apostrophe and an "s" to make it possessive. Here are examples of plural possessive nouns: Cattle's pasture. Geese's eggs.

How do you write plural possessive?

The possessive of a plural noun is formed by adding only an apostrophe when the noun ends in s, and by adding both an apostrophe and s when it ends in a letter other than s.