SN4 ""

No	Pattern	Freq
1	he [vb mod] have been [verb]	483
2	he [modal v] have been [verb]	473
3	he [modal v] have been [vb pp]	274
4	he [modal v] have been [v-ing]	208
5	he would have been [verb]	107
6	he would have been [verb]	94
7	he might have been [verb]	87
8	he might have been [verb]	87
9	he must have been [verb]	86
10	he must have been [verb]	86
11	he could have been [verb]	72
12	he could have been [verb]	72
13	he should have been [verb]	69
14	he should have been [verb]	69
15	he may have been [verb]	45
16	he may have been [verb]	45
17	he 'd have been [verb]	13
18	he [modal v] have been do	12
19	he [modal v] have been put	12
20	he will have been [verb]	11
21	he [modal v] have been killed	10
22	he [modal v] have been give	10
23	he [modal v] have been kill	10
24	he [modal v] have been expect	10
25	he [modal v] have been put	9
26	he [modal v] have been take	9
27	he [modal v] have been given	8
28	he [modal v] have been doing	7
29	he will have been [verb]	7
30	he [modal v] have been bear	7