1. I've been cycling 've cycled( 've been cycling, 've cycled ) and my legs are really tired now.
2. I'm sorry I'm late, have you been waiting have you waited( have you been waiting, have you waited ) for a long time?
3. How long have you known have you been knowing( have you known, have you been knowing ) Peter?
4. Somebody has eaten has been eating( has eaten, has been eating ) my cookies. There are none left.
5. How many books has she written has she been writing( has she written, has she been writing )?
6. She must be tired. She has been writing has written( has been writing, has written ) all afternoon.
7. I think I've liked 've been liking( 've liked, 've been liking ) chocolate since I was born.
8. They have been travelling have travelled( have been travelling, have travelled ) for months, and they have visited have been visited( have visited, have been visited ) three countries so far.
9. Bruce has been playing has played( has been playing, has played ) tennis since he was a child. He has won has been winning( has won, has been winning ) many trophies.
10. He has been fishing has fished( has been fishing, has fished ) since he was a little boy.