SN4 ""

No	Pattern	Freq
1	it be [verb] that [prep]	355
2	it be [vb pp] that [prep]	345
3	it is [verb] that [prep]	174
4	it was [verb] that [prep]	166
5	it be [verb] that in	136
6	it be estimated that [prep]	35
7	it be estimate that [prep]	35
8	it be [verb] that at	31
9	it be [verb] that on	30
10	it be [verb] that by	28
11	it be [verb] that for	26
12	it be hoped that [prep]	23
13	it be hope that [prep]	23
14	it be report that [prep]	21
15	it be reported that [prep]	21
16	it be say that [prep]	20
17	it be said that [prep]	20
18	it be think that [prep]	14
19	it be thought that [prep]	14
20	it 's [verb] that [prep]	13
21	it be [verb] that during	12
22	it be hold that [prep]	12
23	it be held that [prep]	12
24	it be assumed that [prep]	12
25	it be assume that [prep]	12
26	it be find that [prep]	11
27	it be found that [prep]	11
28	it be suggest that [prep]	10
29	it be claim that [prep]	10
30	it be suggested that [prep]	10