SN4 ""

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