SN4 ""

No	Pattern	Freq
1	[conj] it have been for	41
2	[subord] it have been for	38
3	as it have been for	19
4	as it have been for	19
5	than it have been for	18
6	than it have been for	18
7	[noun sg] it have been for	10
8	[noun] it have been for	10
9	[adj] it have been for	10
10	[adv] it have been for	7
11	[adj] it have been for	7
12	way it have been for	6
13	way it have been for	6
14	[Wh det] it have been for	5
15	[pron] it have been for	5
16	it [modal v] have been for	14
17	it [vb mod] have been for	14
18	it must have been for	6
19	it must have been for	6
20	it have [adv] been for	183
21	it have not been for	178
22	it have [not/n't] been for	178
23	it have n't been for	116
24	it have not been for	62
25	it have [adv] been for	5
26	it have been [verb] for	222
27	it have been [vb pp] for	172
28	it have been [adj] for	121
29	it have been [adj] for	115
30	it have been [v-ing] for	50