He only started playing again after the injury two months ago. (be injured)
How long was he injured?
I can't meet tonight. I have my kickboxing classes. (do)
How long have you been doing that?
At last! You're here. I was beginning to worry. (wait)
How long have you been waiting?
I used to be quite good at basketball before I gave up.
How long did you play for?
It's the first accident he's ever had. He's actually a very good driver. (drive)
How long has he been driving?
My parents are having a party for their wedding anniversary on Saturday. (be married)
How long have they been married?