SN4 ""

No	Pattern	Freq
1	[conj] it is [adv] that [noun]	8
2	and it is [adv] that [noun]	6
3	and it is [adv] that [noun]	6
4	[coord] it is [adv] that [noun]	6
5	it is [adv] [adv] that [noun]	26
6	it is not [adv] that [noun]	16
7	it is [not/n't] [adv] that [noun]	16
8	it is not [adv] that [noun]	15
9	it is [adv] [adv] that [noun]	10
10	it is [adj] [adv] that [noun]	9
11	it is only [adv] that [noun]	9
12	it is only [adv] that [noun]	9
13	it is [adj] [adv] that [noun]	9
14	it is [vb pp] [adv] that [noun]	6
15	it is [verb] [adv] that [noun]	6
16	it is [adv] [adj] that [noun]	420
17	it is [adv] [adj] that [noun]	420
18	it is [adv] [verb] that [noun]	207
19	it is [adv] [vb pp] that [noun]	203
20	it is [adv] true that [noun]	53
21	it is [adv] true that [noun]	53
22	it is [adv] surprising that [noun]	47
23	it is [adv] surprising that [noun]	47
24	it is [adv] possible that [noun]	42
25	it is [adv] possible that [noun]	42
26	it is [adv] important that [noun]	41
27	it is [adv] important that [noun]	41
28	it is [adv] know that [noun]	38
29	it is [adv] known that [noun]	38
30	it is [adv] likely that [noun]	35