5 Most Common Grammatical Errors: #3

Apostrophes are used to show possession. However, you do not use an apostrophe after a possessive pronoun such as my, mine, our, ours, his, hers, its, their, or theirs. For example:

• Incorrect: My mothers cabin is next to his' cabin.
• Correct: My mother's cabin is next to his cabin.

In the case of it's, the apostrophe is used only to indicate a contraction for it is. For example:

• Incorrect: Its a cold day for October.
• Correct: It's a cold day for October.

Read more at http://grammar.yourdictionary.com/grammar-rules-and-tips/5-most-common.html#FVgk9FeOQezHUWZP.99

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