Hi,
I would like to know what one of the follow sentences would be correct:
Run for your life, boys. OK. The speaker is thinking that each boy has one life.
Run for your life's, boys. No. The correct expression is 'Run for your lives, boys. There's not a lot of difference, but the speaker is thinking that there are several boys and thus several lives.
You don't make plurals with an apostrophe. eg Say I see two chairs but not I see two chair's.
Also, can you please clarify the use of:
'Their, there, you're and your.'
Perhaps a few example sentences and sentences which would be incorrect? Let me offer a few correct examples for you to look at. I don't like to give incorrect examples.
The students opened their books.
There was a chair in the corner.
You're a rich man. (ie You are a rich man)
Please open your book.
Would you like to write and post a few sentences now, for us to look at?
Best wishes, Clive