SN4 ""

No	Pattern	Freq
1	have been [vb pp] [prep] some	469
2	have been [vb pp] [prep] some	469
3	has been [vb pp] [prep] some	201
4	have been [vb pp] by some	145
5	have been [vb pp] by some	145
6	have been [vb pp] in some	119
7	have been [vb pp] in some	119
8	had been [vb pp] [prep] some	105
9	have been [vb pp] for some	101
10	have been [vb pp] for some	101
11	have been [vb pp] [prep] some	86
12	have been [vb pp] [prep] some	41
13	have been [vb pp] to some	32
14	have been [vb pp] to some	32
15	have been [vb pp] with some	28
16	have been [vb pp] with some	28
17	have been [vb pp] at some	22
18	have been [vb pp] at some	22
19	have been known [prep] some	21
20	to have been [vb pp] [prep] some	17
21	have been used [prep] some	15
22	have been found [prep] some	9
23	have been recognised [prep] some	7
24	have been made [prep] some	7
25	have been established [prep] some	7
26	have been seen [prep] some	7
27	's been [vb pp] [prep] some	7
28	have been suggested [prep] some	6
29	have been described [prep] some	6
30	have been expressed [prep] some	5