SN4 ""

No	Pattern	Freq
1	[conj] [pers pn] might have been [adj]	44
2	[verb] [pers pn] might have been [adj]	22
3	[that] [pers pn] might have been [adj]	20
4	that [pers pn] might have been [adj]	20
5	that [pers pn] might have been [adj]	20
6	[noun] [pers pn] might have been [adj]	18
7	[noun sg] [pers pn] might have been [adj]	15
8	[adv] [pers pn] might have been [adj]	14
9	[subord] [pers pn] might have been [adj]	13
10	[coord] [pers pn] might have been [adj]	11
11	[adv] [pers pn] might have been [adj]	11
12	think [pers pn] might have been [adj]	11
13	[vb past] [pers pn] might have been [adj]	9
14	and [pers pn] might have been [adj]	7
15	[vb base] [pers pn] might have been [adj]	7
16	and [pers pn] might have been [adj]	7
17	thought [pers pn] might have been [adj]	5
18	[pers pn] might [adv] have been [adj]	50
19	[pers pn] might [adv] have been [adj]	31
20	[pers pn] might not have been [adj]	19
21	[pers pn] might [not/n't] have been [adj]	19
22	[pers pn] might not have been [adj]	19
23	[pers pn] might well have been [adj]	8
24	[pers pn] might well have been [adj]	8
25	[pers pn] might have been [adv] [adj]	46
26	[pers pn] might have been [adv] [adj]	46
27	[pers pn] might have been [art] [adj]	38
28	[pers pn] might have been [art] [adj]	38
29	[pers pn] might have been a [adj]	26
30	[pers pn] might have been a [adj]	25