SN4 ""

No	Pattern	Freq
1	had been [vb pp] in	2896
2	has been [vb pp] in	2460
3	have been [vb pp] in	2021
4	have been [vb pp] in	572
5	have been made in	352
6	to have been [vb pp] in	280
7	have been found in	279
8	have been used in	222
9	have been killed in	202
10	having been [vb pp] in	157
11	have been done in	132
12	have been described in	119
13	have been born in	117
14	have been held in	110
15	have been put in	106
16	have been included in	105
17	have been reported in	95
18	have been established in	93
19	have been arrested in	91
20	have been placed in	91
21	have been seen in	79
22	have been developed in	78
23	have been built in	74
24	'd been [vb pp] in	71
25	's been [vb pp] in	71
26	have been shown in	68
27	have been engaged in	68
28	have been taken in	68
29	have been recorded in	66
30	have been lost in	62