SN4 ""

No	Pattern	Freq
1	have been [vb pp] in [adj]	1984
2	have been [vb pp] in [adj]	782
3	have been [vb pp] in [det]	679
4	has been [vb pp] in [adj]	611
5	had been [vb pp] in [adj]	586
6	have been [vb pp] in [adj]	524
7	have been [vb pp] in [num]	490
8	have been [vb pp] in this	202
9	have been [vb pp] in this	202
10	have been [vb pp] in [adj]	130
11	have been [vb pp] in some	119
12	have been [vb pp] in some	119
13	have been [vb pp] in recent	109
14	have been [vb pp] in recent	109
15	have been made in [adj]	76
16	have been used in [adj]	72
17	have been found in [adj]	66
18	to have been [vb pp] in [adj]	64
19	have been [vb pp] in many	58
20	have been [vb pp] in many	58
21	have been [vb pp] in other	56
22	have been [vb pp] in other	56
23	have been [vb pp] in two	48
24	have been [vb pp] in two	48
25	have been [vb pp] in that	47
26	have been [vb pp] in that	47
27	have been [vb pp] in several	46
28	have been [vb pp] in one	46
29	have been [vb pp] in one	46
30	have been [vb pp] in several	46