SN4 ""

No	Pattern	Freq
1	it is [adv] [vb pp] that [pron]	161
2	it is [adv] [vb pp] that [pron]	149
3	it is [adv] [vb pp] that [pers pn]	106
4	it is [adv] [vb pp] that it	45
5	it is [adv] [vb pp] that it	45
6	it is [adv] [vb pp] that there	32
7	it is [adv] [vb pp] that there	32
8	it is [adv] [vb pp] that [ex0]	32
9	it is [adv] [vb pp] that they	25
10	it is [adv] [vb pp] that they	25
11	it is often [vb pp] that [pron]	22
12	it is often [vb pp] that [pron]	22
13	it is well [vb pp] that [pron]	20
14	it is well [vb pp] that [pron]	20
15	it is [adv] known that [pron]	19
16	it is now [vb pp] that [pron]	17
17	it is now [vb pp] that [pron]	17
18	it is [adv] said that [pron]	13
19	it is not [vb pp] that [pron]	12
20	it is [adv] [vb pp] that you	12
21	it is [adv] [vb pp] that you	12
22	it is generally [vb pp] that [pron]	12
23	it is [not/n't] [vb pp] that [pron]	12
24	it is [adv] assumed that [pron]	12
25	it is generally [vb pp] that [pron]	12
26	it is [adv] thought that [pron]	11
27	it is [adv] [vb pp] that he	11
28	it is not [vb pp] that [pron]	11
29	it is [adv] [vb pp] that he	11
30	it is also [vb pp] that [pron]	10