SN4 ""

No	Pattern	Freq
1	[vb mod] have been [adj] [prep] [adj]	197
2	[modal v] have been [adj] [prep] [adj]	196
3	[modal v] have been [adj] [prep] [det]	121
4	would have been [adj] [prep] [adj]	93
5	would have been [adj] [prep] [adj]	91
6	[modal v] have been [adj] [prep] [adj]	58
7	may have been [adj] [prep] [adj]	47
8	may have been [adj] [prep] [adj]	47
9	[modal v] have been [adj] in [adj]	41
10	[modal v] have been [adj] to [adj]	37
11	[modal v] have been [adj] for [adj]	36
12	[modal v] have been [adj] [prep] that	29
13	[modal v] have been [adj] [prep] that	29
14	must have been [adj] [prep] [adj]	23
15	must have been [adj] [prep] [adj]	23
16	[modal v] have been [adj] [prep] this	20
17	[modal v] have been [adj] of [adj]	20
18	[modal v] have been [adj] [prep] this	20
19	[modal v] have been [adj] [prep] some	19
20	[modal v] have been [adj] [prep] some	19
21	might have been [adj] [prep] [adj]	16
22	might have been [adj] [prep] [adj]	16
23	[modal v] have been [adj] [prep] [num]	14
24	[modal v] have been [adj] with [adj]	13
25	[modal v] have been [adj] at [adj]	11
26	[modal v] have been [adj] by [adj]	11
27	[modal v] have been [adj] [prep] any	10
28	[modal v] have been [adj] [prep] any	10
29	could have been [adj] [prep] [adj]	9
30	[modal v] have been [adj] [prep] all	9