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Basic Grammar and Punctuation

An AARC writing resource

About Apostrophes

How To Use Apostrophes

1) An apostrophe is used to show contractions or where letters have been omitted. Contractions are commonly used to combine subjects and verbs and to shorten verbs. For example:

We'd wanted to go to the lake for a long time now. (Combines we had)

I'm not happy when it's raining. (Combines I am and it is)

2) An apostrophe is used to show possession or ownership, when something belongs to something else. Ask yourself who owns what? For example:

Her mother's cousins wanted to throw a big party. (The cousins belong to the mother)

Karen's textbooks got wet in the rain. (The books belong to Karen)

Note - Personal possessive pronouns like his, hers, theirs, ours, yours, or its already show ownership and never take apostrophes. It's always means it is.

3) Apostrophes do not normally indicate plural. They are only used to indicate plural in special circumstances such as numbers or letters that don't normally have plurals. For example:

The phrase mind your p's and q's means be on your best behavior.

4) Here's how to use with plurals - when several people own something. If the word ends in s, use just the apostrophe. For example:

One student =

student

Two students =

students

One student owns =

student's

Two students own =

students'