1. Andy, do/can you hear me? I have been talking to you for a minute already.
2. I want to see how much the place has changed since I was there last.
3. We haven't seen them ever since.
4. I don't want to take a cure at all. I am perfectly happy. All my life I have been perfectly happy.
5. Here's my key. I am leaving.
6. I am going to the shops, don't begin cutting the material until I come back. 7. Wait till you see Moose and talk to him.
8. The children have lived (have been living) with their aunt since their mother has been ill.
9. I must not let my eyes get all red and swollen, or Henry will know I have been crying.
10. The train hasn't arrived yet but a lot of people are standing on the platform.
11. I know him very well. We have known each other since I came to live in this house.
12. He says he has been listening to the same tunes for fifteen years.