SN4 ""

No	Pattern	Freq
1	it [is] [verb] that the [adj]	220
2	it [is] [vb pp] [that] the [adj]	215
3	it is [verb] [that] the [adj]	215
4	it [is] hoped [that] the [adj]	19
5	it [is] hope [that] the [adj]	19
6	it [is] thought [that] the [adj]	15
7	it [is] think [that] the [adj]	15
8	it [is] suggest [that] the [adj]	14
9	it [is] suggested [that] the [adj]	14
10	it [is] assume [that] the [adj]	14
11	it [is] assumed [that] the [adj]	14
12	it [is] say [that] the [adj]	12
13	it [is] envisaged [that] the [adj]	12
14	it [is] [verb] [that] the new	12
15	it [is] envisage [that] the [adj]	12
16	it [is] believe [that] the [adj]	11
17	it [is] said [that] the [adj]	11
18	it [is] believed [that] the [adj]	10
19	it [is] estimate [that] the [adj]	9
20	it [is] argue [that] the [adj]	9
21	it [is] argued [that] the [adj]	9
22	it [is] estimated [that] the [adj]	9
23	it [is] felt [that] the [adj]	8
24	it [is] [verb] [that] the following	8
25	it [is] feel [that] the [adj]	8
26	it [is] claim [that] the [adj]	7
27	it [is] claimed [that] the [adj]	7
28	it [is] expect [that] the [adj]	6
29	it [is] anticipate [that] the [adj]	6
30	it [is] expected [that] the [adj]	6