SN4 ""

No	Pattern	Freq
1	[pron] might have been [verb]	377
2	[noun] might have been [verb]	307
3	[pers pn] might have been [verb]	285
4	[noun sg] might have been [verb]	171
5	[conj] might have been [verb]	131
6	[noun pl] might have been [verb]	94
7	he might have been [verb]	87
8	he might have been [verb]	87
9	it might have been [verb]	74
10	it might have been [verb]	74
11	[Wh det] might have been [verb]	67
12	[subord] might have been [verb]	66
13	that might have been [verb]	58
14	that might have been [verb]	58
15	[that] might have been [verb]	58
16	they might have been [verb]	55
17	they might have been [verb]	53
18	which might have been [verb]	46
19	which might have been [verb]	46
20	than might have been [verb]	43
21	than might have been [verb]	43
22	[noun prp] might have been [verb]	36
23	she might have been [verb]	36
24	she might have been [verb]	36
25	[adj] might have been [verb]	32
26	as might have been [verb]	23
27	as might have been [verb]	23
28	what might have been [verb]	20
29	what might have been [verb]	20
30	[det] might have been [verb]	18