Ответ:

1)have been writing

2)has been writing

3)have you been doing, have been sitting

4)have been living

5)have been keeping

6)has been happening

7)has been drinking

8)have been drinking

9)has been cooking

10)havent been finishing, have been reading

11)has been forging, have been expecting

12)have you been waiting

13)have you been knowing

have been founding out

14)has been asking, has been asking

Объяснение: