The possessive case of plural nouns that end in s is formed by adding an apostrophe: This is the boys’ bedroom. My parents’ house is a lovely old one. The scissors’ handles just snapped off. The Jeffersons’ yard is always beautifully landscaped. The possessive case of irregular plural nouns that don’t end in s is formed by adding -’s.

Plural nouns that end in “s” (most plural nouns) form the possessive with an apostrophe after the “s,” without adding a second “s.” For example, to describe the roofs of multiple houses, you would write “the houses’ roofs” (“the house’s roofs” would refer to multiple roofs on one house).

In general, if the noun ends in “s” because it is plural, you simply add an apostrophe after the “s”. If you want to form a possessive from a noun ending in “s,” you can do so in two ways, depending on the style you’re following. You can simply follow normal possessive rules or add only an apostrophe.

To form a plural possessive noun, there are several rules to follow, depending on the type of noun. Plural Nouns Ending in -s For plural nouns that end in "s," add only an apostrophe after the "s" to form a possessive noun. For example: The dogs' toys were scattered all over the yard. The girls' dresses were all different colors.

Plural Nouns Ending in s These plural nouns become possessive when we add an apostrophe (’) after the letter s. I will throw the dog s’ sticks across the grass, and the dogs will run after them. The donkey s’ stables are near the farmyard. My storie s’ characters are all girls. I should add some boys.