SN4 ""

No	Pattern	Freq
1	[pos pn] [noun] [vb mod] have been [adj]	99
2	[pos pn] [noun] [modal v] have been [adj]	96
3	[pos pn] [noun] [modal v] have been [adj]	76
4	[pos pn] [noun sg] [modal v] have been [adj]	73
5	[pos pn] [noun] would have been [adj]	52
6	[pos pn] [noun] would have been [adj]	52
7	his [noun] [modal v] have been [adj]	33
8	[pos pn] [noun pl] [modal v] have been [adj]	25
9	her [noun] [modal v] have been [adj]	18
10	their [noun] [modal v] have been [adj]	15
11	[pos pn] [noun] [modal v] have been [adj -er]	12
12	[pos pn] [noun] must have been [adj]	11
13	[pos pn] [noun] must have been [adj]	11
14	my [noun] [modal v] have been [adj]	10
15	[pos pn] [noun] might have been [adj]	9
16	[pos pn] [noun] might have been [adj]	9
17	your [noun] [modal v] have been [adj]	9
18	[pos pn] [noun] [modal v] have been different	8
19	[pos pn] [noun] may have been [adj]	8
20	[pos pn] [noun] may have been [adj]	8
21	[pos pn] [noun] [modal v] have been different	8
22	[pos pn] [noun] will have been [adj]	7
23	our [noun] [modal v] have been [adj]	7
24	[pos pn] [noun] will have been [adj]	7
25	[pos pn] [noun] could have been [adj]	6
26	its [noun] [modal v] have been [adj]	6
27	[pos pn] [noun] [modal v] have been [det]	6
28	[pos pn] [noun] could have been [adj]	6
29	[pos pn] husband [modal v] have been [adj]	5
30	[pos pn] husband [modal v] have been [adj]	5