SN4 ""

No	Pattern	Freq
1	[conj] it is [verb] that [pron]	186
2	[subord] it is [verb] that [pron]	90
3	[coord] it is [verb] that [pron]	89
4	and it is [verb] that [pron]	59
5	and it is [verb] that [pron]	59
6	[noun] it is [verb] that [pron]	34
7	if it is [verb] that [pron]	33
8	if it is [verb] that [pron]	33
9	but it is [verb] that [pron]	29
10	but it is [verb] that [pron]	29
11	[noun sg] it is [verb] that [pron]	28
12	[adv] it is [verb] that [pron]	24
13	[adv] it is [verb] that [pron]	16
14	when it is [verb] that [pron]	13
15	when it is [verb] that [pron]	13
16	because it is [verb] that [pron]	9
17	because it is [verb] that [pron]	9
18	[Wh adv] it is [verb] that [pron]	8
19	[adj] it is [verb] that [pron]	8
20	where it is [verb] that [pron]	8
21	where it is [verb] that [pron]	8
22	[that] it is [verb] that [pron]	7
23	[verb] it is [verb] that [pron]	7
24	that it is [verb] that [pron]	7
25	that it is [verb] that [pron]	7
26	unless it is [verb] that [pron]	5
27	unless it is [verb] that [pron]	5
28	although it is [verb] that [pron]	5
29	although it is [verb] that [pron]	5
30	it is [adj] [verb] that [pron]	324