1 We have been cleaning the windows for half an hour
2 It has been snowing for three days
3 Grandma has been knitting for half an hour
4 Patrick has been singing since he got up
5 We have been studying German for about five months
6 He has been playing the piano for about two years
7 It has been raining since Tuesday
8 I have been using my laptop since I was 10
9 They have been doing homework since 2 p.m.
10 I have been practising sport for 12 years
11 She has been training since four o'clock.
12 We have been working for this company since 1999.
13 I'm exhausted because I have been doing exercise all morning.
14. He has been writing a letter for one hour.
15. She has been reading for half an hour.
16. I have been phoning her for hours.
17 They have been waiting him for five minutes.
18 My grandfather has been washing the car since fuor o'clock.
19 She has talking to her mother all the time.
20 He has been driving for six hours.
21 He has been repairing my bike for one hour.
22 The radio hasn’t been working for ages
23 I Have been living since may
24 I haven’t been working since april
25 She has been playing since 5 years
26 It has been raining since this morning
27It hasn’t been etting worse all week
28I have been taking lesssond all the months
29 She has been eating sice this morning
30 They have been arguing