SN4 ""

No	Pattern	Freq
1	he [vb mod] have been [vb pp]	274
2	he [modal v] have been [vb pp]	269
3	he would have been [vb pp]	80
4	he would have been [vb pp]	70
5	he should have been [vb pp]	46
6	he should have been [vb pp]	46
7	he could have been [vb pp]	43
8	he could have been [vb pp]	43
9	he might have been [vb pp]	42
10	he might have been [vb pp]	42
11	he must have been [vb pp]	27
12	he must have been [vb pp]	27
13	he may have been [vb pp]	25
14	he may have been [vb pp]	25
15	he 'd have been [vb pp]	10
16	he [modal v] have been killed	10
17	he [modal v] have been put	9
18	he [modal v] have been given	8
19	he will have been [vb pp]	8
20	he [modal v] have been expected	7
21	he [modal v] have been born	7
22	he will have been [vb pp]	6
23	he [modal v] have been taken	5
24	he [modal v] have been done	5
25	he [modal v] have been told	5