SN4 ""

No	Pattern	Freq
1	[noun] have been the [adj]	547
2	[pron] have been the [adj]	336
3	[vb mod] have been the [adj]	317
4	[modal v] have been the [adj]	317
5	[noun sg] have been the [adj]	313
6	[pers pn] have been the [adj]	203
7	[noun pl] have been the [adj]	117
8	[adj] have been the [adj]	114
9	[noun prp] have been the [adj]	110
10	would have been the [adj]	108
11	[adv] have been the [adj]	108
12	would have been the [adj]	106
13	it have been the [adj]	105
14	it have been the [adj]	105
15	[verb] have been the [adj]	92
16	[det] have been the [adj]	67
17	must have been the [adj]	62
18	must have been the [adj]	62
19	may have been the [adj]	61
20	may have been the [adj]	61
21	[adv] have been the [adj]	61
22	[Wh det] have been the [adj]	54
23	[not/n't] have been the [adj]	45
24	not have been the [adj]	45
25	he have been the [adj]	44
26	he have been the [adj]	44
27	[ex0] have been the [adj]	44
28	there have been the [adj]	44
29	there have been the [adj]	44
30	not have been the [adj]	40