SN4 ""

No	Pattern	Freq
1	have been [vb pp] [prep] many	262
2	has been [vb pp] [prep] many	140
3	have been [vb pp] by many	77
4	have been [vb pp] by many	77
5	have been [vb pp] [prep] many	70
6	have been [vb pp] for many	67
7	have been [vb pp] for many	67
8	have been [vb pp] in many	58
9	have been [vb pp] in many	58
10	had been [vb pp] [prep] many	37
11	have been used [prep] many	22
12	have been [vb pp] on many	14
13	have been [vb pp] on many	14
14	have been [vb pp] over many	12
15	have been [vb pp] over many	12
16	have been known [prep] many	11
17	have been [vb pp] [prep] many	11
18	have been seen [prep] many	9
19	have been made [prep] many	9
20	have been [vb pp] from many	8
21	have been [vb pp] at many	8
22	have been [vb pp] at many	8
23	have been [vb pp] from many	8
24	have been considered [prep] many	6
25	have been [vb pp] to many	6
26	have been [vb pp] to many	6
27	have been reported [prep] many	5
28	have been established [prep] many	5