SN4 ""

No	Pattern	Freq
1	[vb pp] to have been	1555
2	said have been	320
3	thought have been	217
4	[vb pp] has been	202
5	reported have been	196
6	believed have been	180
7	[vb pp] have been	130
8	[vb pp] had been	119
9	known have been	107
10	alleged have been	58
11	deemed have been	53
12	found have been	38
13	held have been	37
14	seen have been	33
15	considered have been	29
16	understood have been	28
17	presumed have been	26
18	estimated have been	25
19	had have been	25
20	done have been	23
21	reputed have been	19
22	made have been	18
23	shown have been	17
24	assumed have been	17
25	proved have been	17
26	rumoured have been	15
27	liked have been	13
28	involved have been	13
29	used have been	12
30	claimed have been	11