SN4 ""

No	Pattern	Freq
1	it is [adj] [that] the	2041
2	it is [adj] [that] the	2037
3	it is [verb] [that] the	1133
4	it is [vb pp] [that] the	1107
5	it is clear [that] the	330
6	it is clear [that] the	330
7	it is possible [that] the	193
8	it is possible [that] the	193
9	it is likely [that] the	191
10	it is likely [that] the	190
11	it is important [that] the	186
12	it is important [that] the	186
13	it is true [that] the	144
14	it is true [that] the	144
15	it is [adv] [that] the	124
16	it is hoped [that] the	108
17	it is hope [that] the	108
18	it is [adv] [that] the	103
19	it is suggest [that] the	97
20	it is suggested [that] the	95
21	it is essential [that] the	94
22	it is essential [that] the	94
23	it is unlikely [that] the	89
24	it is unlikely [that] the	89
25	it is assumed [that] the	70
26	it is assume [that] the	70
27	it is think [that] the	67
28	it is thought [that] the	67
29	it is evident [that] the	61
30	it is evident [that] the	61