SN4 ""

No	Pattern	Freq
1	[conj] it is [verb] that	934
2	[conj] it is [vb pp] that	912
3	[subord] it is [verb] that	503
4	[coord] it is [verb] that	403
5	and it is [verb] that	272
6	and it is [verb] that	272
7	if it is [verb] that	164
8	if it is [verb] that	164
9	but it is [verb] that	128
10	but it is [verb] that	128
11	[conj] it is hope that	75
12	[conj] it is hoped that	75
13	when it is [verb] that	65
14	when it is [verb] that	65
15	[conj] it is known that	60
16	[conj] it is know that	60
17	[conj] it is think that	52
18	[conj] it is thought that	52
19	where it is [verb] that	51
20	[conj] it is assumed that	51
21	where it is [verb] that	51
22	[conj] it is assume that	51
23	although it is [verb] that	42
24	although it is [verb] that	42
25	[conj] it is suggest that	42
26	[conj] it is accepted that	41
27	[conj] it is accept that	41
28	[conj] it is say that	40
29	[conj] it is felt that	38
30	[conj] it is feel that	38