You MUSN'T smoke in the office.

You WERE supposed to finish cleaning the house by the end of the day. You didn’t.

You don't have to add statistics to your presentation. / not necessary/

A: Let me introduce you. This is Jane… B: I think we have meet before.  C: Yes, we have. Kate introduced Alan to me at her wedding reception.

I was supposed to meet mom for lunch,but I overslept and now she's angry with me.

You are grounded for two weeks. You aren't going to Jake’s concert in the pub, or shopping with me next Sunday.

I have been reading this book for two weeks and I still haven't finished it because it's so huge and hard to read.

The United Kingdom of Great Britain and Northern Ireland is the fifth largest economy in the world as well as a politically poweful country.

How long have you been teaching at this school?

Jenna is a nice girl. I have known since high school.

I put the food mom had left for me in the oven to heat it,but while I was heating it,the oven broke down.

 Oh, thanks! As a matter of fact yes. I JOINED a TRX group a couple of months ago.