SN4 ""

No	Pattern	Freq
1	[noun] have been [v-ing] for	456
2	[noun] [vb past] been [v-ing] for	186
3	[noun] had been [v-ing] for	186
4	[noun sg] [verb] been [v-ing] for	170
5	[noun] [vb -s] been [v-ing] for	146
6	[noun prp] [verb] been [v-ing] for	143
7	[noun] has been [v-ing] for	128
8	[noun pl] [verb] been [v-ing] for	128
9	[noun] have been [v-ing] for	123
10	[noun] [vb base] been [v-ing] for	123
11	[noun] [verb] been waiting for	54
12	[noun] [verb] been looking for	30
13	[noun] [verb] been running for	25
14	[noun] [verb] been pressing for	21
15	[noun] [verb] been working for	20
16	[noun] 's been [v-ing] for	18
17	[noun] [verb] been campaigning for	15
18	[noun] [verb] been going for	15
19	[noun] [verb] been trying for	14
20	[n mass] [verb] been [v-ing] for	10
21	[noun] [verb] been fighting for	10
22	[noun] [verb] been doing for	8
23	[noun] [verb] been operating for	8
24	[noun] [verb] been calling for	8
25	country [verb] been [v-ing] for	7
26	people [verb] been [v-ing] for	7
27	people [verb] been [v-ing] for	7
28	[noun] [verb] been searching for	7
29	[noun] [verb] been preparing for	7
30	[noun] [verb] been missing for	6