SN4 ""

No	Pattern	Freq
1	have been [v-ing] for	1564
2	[vb past] been [v-ing] for	584
3	[vb base] been [v-ing] for	516
4	had been [v-ing] for	496
5	[vb -s] been [v-ing] for	380
6	have been [v-ing] for	294
7	has been [v-ing] for	270
8	[verb] been waiting for	236
9	've been [v-ing] for	222
10	[verb] been looking for	156
11	's been [v-ing] for	110
12	'd been [v-ing] for	88
13	[vb infin] been [v-ing] for	66
14	[verb] been working for	66
15	have been [v-ing] for	64
16	[verb] been running for	55
17	[verb] been going for	53
18	[verb] been trying for	40
19	[verb] been doing for	37
20	[verb] been campaigning for	30
21	[verb] been pressing for	28
22	[verb] been missing for	27
23	[verb] been searching for	26
24	[verb] been fighting for	25
25	[verb] been hoping for	23
26	[verb] been asking for	23
27	[verb] been calling for	21
28	[verb] been saying for	20
29	[verb] been playing for	19
30	[verb] been driving for	16