This apostrophe replaces the missing letter or letters and joins the words together to make one word.

I am → I'm

British (American)
Mr (Mr.) – Mister (not usually written in full)
Ms (Ms.)
Mrs (Mrs.)

6 Punctuation Rules You Must Never Overlook by Ethan Miller

Comma: A Tiny but Powerful Tool by Patrick Cole

For more information and video about apostrophes for possession click here.

Click here if you're interested in the Punctuation Guide & Workbook - to improve your punctuation, spelling and writing.

ebook or e-book? email or e-mail? anticlockwise or anti-clockwise?

The Punctuation Guide and Workbook is a straightforward, jargon-free, step-by-step guide to understanding punctuation so you can improve your confidence in using it correctly, and therefore, improve your writing, grammar and even spelling (especially those pesky apostrophes!).

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Punctuation - ! , . ! : ; . " " ..

Is it raining? I sent an email to you. Don't do that!

Many people hate punctuation, don't know why we should use it and don't really understand the purpose of it.