Back

We use back with other words to give the sense of return. Here are some expamples:


He was gone for a while, but now he's back. (Be + back = be here again)
I'm going out but I'll be back soon.


I need to give back the book.(Give + back = return something)
Could you give me back the DVD you borrowed?


When are you coming back? (Come + back = return to this place)
She came back to work today.


I'm in a meeting right now; could I call you back in an hour? (Call + back = return a call)
When I called him back he was on the metro.


P.S. This post is dedicated to JL, who has just come back to work. Welcome back! We missed you!