SN4 ""

No	Pattern	Freq
1	[conj] it is [vb pp] that	912
2	[subord] it is [vb pp] that	496
3	[coord] it is [vb pp] that	388
4	and it is [vb pp] that	264
5	and it is [vb pp] that	264
6	if it is [vb pp] that	164
7	if it is [vb pp] that	164
8	but it is [vb pp] that	121
9	but it is [vb pp] that	121
10	[conj] it is hoped that	75
11	when it is [vb pp] that	65
12	when it is [vb pp] that	65
13	[conj] it is known that	60
14	[conj] it is thought that	52
15	where it is [vb pp] that	51
16	where it is [vb pp] that	51
17	[conj] it is assumed that	51
18	although it is [vb pp] that	42
19	although it is [vb pp] that	42
20	[conj] it is accepted that	41
21	[conj] it is said that	38
22	[conj] it is felt that	38
23	[conj] it is suggested that	38
24	[conj] it is expected that	33
25	[conj] it is believed that	32
26	once it is [vb pp] that	29
27	once it is [vb pp] that	29
28	because it is [vb pp] that	29
29	because it is [vb pp] that	29
30	[conj] it is understood that	29