SN4 ""

No	Pattern	Freq
1	[vb mod] have been [adj] to	234
2	[modal v] have been [adj] to	233
3	[modal v] have been [adj] to	227
4	would have been [adj] to	114
5	would have been [adj] to	113
6	may have been [adj] to	44
7	may have been [adj] to	44
8	[modal v] have been due to	37
9	[modal v] have been due to	37
10	must have been [adj] to	29
11	must have been [adj] to	29
12	should have been [adj] to	19
13	should have been [adj] to	19
14	might have been [adj] to	18
15	might have been [adj] to	18
16	[modal v] have been obvious to	13
17	[modal v] have been obvious to	13
18	[modal v] have been entitled to	12
19	[modal v] have been entitled to	12
20	[modal v] have been available to	9
21	[modal v] have been available to	9
22	[modal v] have been tantamount to	7
23	[modal v] have been close to	7
24	[modal v] have been tantamount to	7
25	[modal v] have been open to	7
26	[modal v] have been open to	7
27	[modal v] have been close to	7
28	[modal v] have been able to	6
29	[modal v] have been able to	6
30	[modal v] have been subject to	6