SN4 ""

No	Pattern	Freq
1	it [be] [vb pp] that the [adj]	449
2	it be [vb pp] that the [adj]	449
3	it [be] [vb pp] that the [adj]	449
4	it was [vb pp] that the [adj]	225
5	it [was/were] [vb pp] that the [adj]	225
6	it [is] [vb pp] that the [adj]	215
7	it is [vb pp] that the [adj]	211
8	it [be] assumed that the [adj]	26
9	it [be] [vb pp] that the new	25
10	it [be] suggested that the [adj]	22
11	it [be] thought that the [adj]	21
12	it [be] argued that the [adj]	20
13	it [be] felt that the [adj]	20
14	it [be] said that the [adj]	20
15	it [be] hoped that the [adj]	20
16	it [be] agreed that the [adj]	20
17	it [be] estimated that the [adj]	18
18	it [be] believed that the [adj]	16
19	it [be] announced that the [adj]	14
20	it [be] found that the [adj]	14
21	it [be] envisaged that the [adj]	12
22	it [be] reported that the [adj]	12
23	it [be] claimed that the [adj]	12
24	it [be] held that the [adj]	12
25	it [be] [vb pp] that the following	10
26	it [be] [vb pp] that the main	10
27	it [be] [vb pp] that the british	9
28	it [be] anticipated that the [adj]	9
29	it [be] [vb pp] that the only	8
30	it [be] understood that the [adj]	8