SN4 ""

No	Pattern	Freq
1	it is [adv] [vb pp] that [pron]	149
2	it is [adv] [vb pp] that [pers pn]	106
3	it is [adv] [vb pp] that it	45
4	it is [adv] [vb pp] that it	45
5	it is [adv] [vb pp] that there	32
6	it is [adv] [vb pp] that there	32
7	it is [adv] [vb pp] that [ex0]	32
8	it is [adv] [vb pp] that they	25
9	it is [adv] [vb pp] that they	25
10	it is often [vb pp] that [pron]	22
11	it is often [vb pp] that [pron]	22
12	it is well [vb pp] that [pron]	20
13	it is well [vb pp] that [pron]	20
14	it is [adv] known that [pron]	19
15	it is now [vb pp] that [pron]	17
16	it is now [vb pp] that [pron]	17
17	it is [adv] said that [pron]	13
18	it is generally [vb pp] that [pron]	12
19	it is generally [vb pp] that [pron]	12
20	it is [adv] [vb pp] that you	12
21	it is [adv] assumed that [pron]	12
22	it is [adv] [vb pp] that you	12
23	it is [not/n't] [vb pp] that [pron]	12
24	it is not [vb pp] that [pron]	12
25	it is not [vb pp] that [pron]	11
26	it is [adv] thought that [pron]	11
27	it is [adv] [vb pp] that he	11
28	it is [adv] [vb pp] that he	11
29	it is [adv] accepted that [pron]	10
30	it is strongly [vb pp] that [pron]	10