SN4 ""

No	Pattern	Freq
1	[vb base] been [v-ing] for	516
2	have been [v-ing] for	294
3	've been [v-ing] for	222
4	[vb base] been waiting for	92
5	[vb base] been looking for	72
6	[vb base] been doing for	22
7	[vb base] been going for	18
8	[vb base] been campaigning for	17
9	[vb base] been working for	15
10	[vb base] been saying for	14
11	[vb base] been trying for	12
12	[vb base] been asking for	11
13	[vb base] been pressing for	11
14	[vb base] been calling for	9
15	[vb base] been running for	7
16	[vb base] been living for	7
17	[vb base] been searching for	7
18	[vb base] been fighting for	7
19	[vb base] been competing for	6
20	[vb base] been talking for	5
21	[vb base] been playing for	5
22	[vb base] been preparing for	5