SN4 ""

No	Pattern	Freq
1	[conj] it [vb mod] have been [prep]	65
2	[conj] it [modal v] have been [prep]	65
3	[subord] it [modal v] have been [prep]	37
4	[conj] it would have been [prep]	23
5	[conj] it would have been [prep]	23
6	[conj] it [modal v] have been in	21
7	as it [modal v] have been [prep]	19
8	as it [modal v] have been [prep]	19
9	[coord] it [modal v] have been [prep]	19
10	than it [modal v] have been [prep]	13
11	than it [modal v] have been [prep]	13
12	[conj] it must have been [prep]	11
13	but it [modal v] have been [prep]	11
14	[conj] it must have been [prep]	11
15	but it [modal v] have been [prep]	11
16	[conj] it may have been [prep]	10
17	[conj] it may have been [prep]	10
18	[that] it [modal v] have been [prep]	9
19	that it [modal v] have been [prep]	9
20	that it [modal v] have been [prep]	9
21	[conj] it [modal v] have been on	8
22	[conj] it should have been [prep]	8
23	[conj] it could have been [prep]	8
24	[conj] it could have been [prep]	8
25	[conj] it should have been [prep]	8
26	and it [modal v] have been [prep]	7
27	and it [modal v] have been [prep]	7
28	[conj] it might have been [prep]	5
29	[conj] it [modal v] have been at	5
30	[conj] it might have been [prep]	5