SN4 ""

No	Pattern	Freq
1	it is [verb] that the [adj]	270
2	it is [verb] that the [adj]	270
3	it is [vb pp] that the [adj]	265
4	it is [verb] that the [adj]	215
5	it is hope that the [adj]	27
6	it is hoped that the [adj]	27
7	it is [verb] that the [num ord]	21
8	it is thought that the [adj]	19
9	it is suggest that the [adj]	19
10	it is suggested that the [adj]	19
11	it is think that the [adj]	19
12	it is assumed that the [adj]	17
13	it is assume that the [adj]	17
14	it is [verb] that the first	16
15	it is [verb] that the first	16
16	it is say that the [adj]	15
17	it is said that the [adj]	14
18	it is envisaged that the [adj]	12
19	it is believe that the [adj]	12
20	it is [verb] that the new	12
21	it is envisage that the [adj]	12
22	it is [verb] that the new	12
23	it is estimated that the [adj]	12
24	it is estimate that the [adj]	12
25	it is [verb] that the [num]	12
26	it is believed that the [adj]	11
27	it is argue that the [adj]	10
28	it is expected that the [adj]	10
29	it is argued that the [adj]	10
30	it is expect that the [adj]	10