SN4 ""

No	Pattern	Freq
1	would have been [verb]	1721
2	would have been [verb]	1659
3	would have been [vb pp]	1413
4	would have been [v-ing]	203
5	would have been [to-vb]	108
6	'd have been [verb]	77
7	would have been make	38
8	would have been have	34
9	would have been made	34
10	would have been expect	26
11	would have been do	26
12	would have been expected	25
13	would have been use	24
14	would have been lost	23
15	would have been used	23
16	would have been lose	23
17	would have been require	21
18	would have been required	21
19	would have been leave	20
20	would have been consider	19
21	would have been considered	19
22	would have been pay	18
23	would have been take	18
24	would have been give	18
25	would have been left	16
26	would have been paid	16
27	would have been taken	16
28	would have been regarded	15
29	would have been regard	15
30	would have been given	15