SN4 ""

No	Pattern	Freq
1	have been [vb pp] that [adj]	365
2	has been [verb] that [adj]	285
3	have been [verb] that [det]	199
4	have been [verb] that [adj]	140
5	have been suggest that [adj]	70
6	have been suggested that [adj]	70
7	have been [verb] that this	67
8	have been [verb] that this	67
9	had been [verb] that [adj]	47
10	have been argue that [adj]	37
11	have been argued that [adj]	36
12	have been [verb] that [num]	35
13	have been estimated that [adj]	34
14	have been estimate that [adj]	34
15	have been show that [adj]	28
16	have been [verb] that some	27
17	have been shown that [adj]	27
18	have been [verb] that some	27
19	have been [verb] that [adj]	24
20	have been [verb] that these	23
21	have been [verb] that these	23
22	have been told that [adj]	19
23	have been tell that [adj]	19
24	have been [verb] that such	18
25	have been [verb] that such	18
26	have been find that [adj]	15
27	have been [verb] that all	14
28	have been found that [adj]	14
29	have been [verb] that all	14
30	have been claim that [adj]	12