How to use apostrophe 's' with plural nouns?

When using apostrophe 's' with plural nouns, you should place the apostrophe after the 's' at the end of the plural noun. For example:

- The students' books (books belonging to multiple students)
- The dogs' toys (toys belonging to multiple dogs)
- The teachers' lounge (lounge for multiple teachers)

However, if the plural noun does not end in 's', you should add an apostrophe followed by 's'. For example:

- The children's toys (toys belonging to multiple children)
- The women's restroom (restroom for multiple women)

General Rule:

To indicate possession for plural nouns that end in "-s," simply add an apostrophe (') after the "s."

Examples:

- The students' backpacks are filled with books.
- The cats' toys are scattered around the house.

Exception for Plural Nouns Not Ending in "-s":

If the plural noun does not end in "-s," add an apostrophe and an "s" after the noun.

Examples:

- The children's drawings are on the refrigerator.
- The men's hats are hanging in the closet.

Possessive Forms of Singular Nouns Ending in "-s":

For singular nouns that end in "-s," the possessive form can be confusing. There are two options:

1. Add an apostrophe only ('): This is recommended by most style guides and avoids ambiguity.

- Example: The actress's performance was outstanding.

2. Add an apostrophe and an "s" (')s): This is the traditional form and is still used by some writers.

- Example: The actress's performance was outstanding.