SN4 ""

No	Pattern	Freq
1	[conj] [noun] [modal v] have been [adj]	86
2	[conj] [noun] [vb mod] have been [adj]	86
3	[conj] [noun] [modal v] have been [adj]	76
4	[coord] [noun] [modal v] have been [adj]	51
5	and [noun] [modal v] have been [adj]	39
6	and [noun] [modal v] have been [adj]	39
7	[conj] [noun] would have been [adj]	38
8	[conj] [noun] would have been [adj]	38
9	[conj] [noun prp] [modal v] have been [adj]	37
10	[conj] [noun pl] [modal v] have been [adj]	26
11	[conj] [noun sg] [modal v] have been [adj]	20
12	that [noun] [modal v] have been [adj]	19
13	[that] [noun] [modal v] have been [adj]	19
14	that [noun] [modal v] have been [adj]	19
15	[subord] [noun] [modal v] have been [adj]	16
16	[conj] [noun] might have been [adj]	12
17	[conj] [noun] must have been [adj]	12
18	[conj] [noun] might have been [adj]	12
19	[conj] [noun] must have been [adj]	12
20	[conj] [noun] may have been [adj]	11
21	[conj] [noun] may have been [adj]	11
22	[conj] things [modal v] have been [adj]	8
23	[conj] thing [modal v] have been [adj]	8
24	or [noun] [modal v] have been [adj]	7
25	or [noun] [modal v] have been [adj]	7
26	[conj] [noun] [modal v] have been [num]	5
27	[conj] [noun] could have been [adj]	5
28	but [noun] [modal v] have been [adj]	5
29	but [noun] [modal v] have been [adj]	5
30	[conj] [noun] [modal v] have been different	5