SN4 ""

No	Pattern	Freq
1	have been [verb] that [det]	199
2	have been [vb pp] that [det]	191
3	has been [verb] that [det]	147
4	have been [verb] that this	67
5	have been suggested that [det]	43
6	have been suggest that [det]	43
7	have been [verb] that some	27
8	had been [verb] that [det]	26
9	have been [verb] that these	23
10	have been argue that [det]	20
11	have been argued that [det]	20
12	have been [verb] that such	18
13	have been estimate that [det]	16
14	have been estimated that [det]	16
15	have been [verb] that [det]	14
16	have been [verb] that all	14
17	have been told that [det]	14
18	have been tell that [det]	14
19	have been shown that [det]	11
20	have been show that [det]	11
21	have been [verb] that any	10
22	have been find that [det]	8
23	have been [verb] that many	8
24	have been say that [det]	7
25	have been [verb] that most	7
26	have been found that [det]	7
27	have been assumed that [det]	7
28	have been assume that [det]	7
29	have been [to-vb] that [det]	6
30	have been said that [det]	5