SN4 ""

No	Pattern	Freq
1	[modal v] have been [adj] [prep] [det]	121
2	[vb mod] have been [adj] [prep] [det]	121
3	[modal v] have been [adj] [prep] [det]	120
4	would have been [adj] [prep] [det]	56
5	would have been [adj] [prep] [det]	55
6	[modal v] have been [adj] [prep] that	29
7	[modal v] have been [adj] in [det]	25
8	[modal v] have been [adj] in [det]	25
9	may have been [adj] [prep] [det]	22
10	may have been [adj] [prep] [det]	22
11	[modal v] have been [adj] for [det]	21
12	[modal v] have been [adj] for [det]	21
13	[modal v] have been [adj] to [det]	20
14	[modal v] have been [adj] to [det]	20
15	[modal v] have been [adj] [prep] this	20
16	[modal v] have been [adj] [prep] some	19
17	must have been [adj] [prep] [det]	18
18	must have been [adj] [prep] [det]	18
19	[modal v] have been [adj] of [det]	14
20	[modal v] have been [adj] of [det]	14
21	[modal v] have been [adj] [prep] any	10
22	[modal v] have been [adj] [prep] all	9
23	might have been [adj] [prep] [det]	9
24	[modal v] have been [adj] with [det]	9
25	might have been [adj] [prep] [det]	9
26	[modal v] have been [adj] with [det]	9
27	[modal v] have been [adj] at [det]	8
28	could have been [adj] [prep] [det]	8
29	[modal v] have been [adj] [prep] those	8
30	should have been [adj] [prep] [det]	8