SN4 ""

No	Pattern	Freq
1	[conj] [pers pn] have been the [adj]	33
2	[subord] [pers pn] have been the [adj]	13
3	that [pers pn] have been the [adj]	10
4	[coord] [pers pn] have been the [adj]	10
5	[that] [pers pn] have been the [adj]	10
6	that [pers pn] have been the [adj]	10
7	but [pers pn] have been the [adj]	7
8	but [pers pn] have been the [adj]	7
9	[noun] [pers pn] have been the [adj]	6
10	if [pers pn] have been the [adj]	6
11	if [pers pn] have been the [adj]	6
12	[adv] [pers pn] have been the [adj]	5
13	[pers pn] [vb mod] have been the [adj]	50
14	[pers pn] [modal v] have been the [adj]	50
15	[pers pn] would have been the [adj]	12
16	[pers pn] would have been the [adj]	12
17	[pers pn] may have been the [adj]	11
18	[pers pn] may have been the [adj]	11
19	[pers pn] might have been the [adj]	7
20	[pers pn] might have been the [adj]	7
21	[pers pn] must have been the [adj]	7
22	[pers pn] [verb] have been the [adj]	7
23	[pers pn] must have been the [adj]	7
24	[pers pn] should have been the [adj]	6
25	[pers pn] could have been the [adj]	6
26	[pers pn] could have been the [adj]	6
27	[pers pn] should have been the [adj]	6
28	[pers pn] have [adv] been the [adj]	31
29	[pers pn] have [adv] been the [adj]	21
30	[pers pn] have not been the [adj]	10