SN4 ""

No	Pattern	Freq
1	[conj] it is [vb pp] that [adj]	180
2	[conj] it is [vb pp] that [adj]	180
3	[conj] it is [vb pp] that [det]	113
4	[coord] it is [vb pp] that [adj]	89
5	[subord] it is [vb pp] that [adj]	89
6	and it is [vb pp] that [adj]	64
7	and it is [vb pp] that [adj]	64
8	[conj] it is [vb pp] that [adj]	52
9	if it is [vb pp] that [adj]	31
10	if it is [vb pp] that [adj]	31
11	[conj] it is [vb pp] that this	28
12	[conj] it is [vb pp] that this	28
13	but it is [vb pp] that [adj]	25
14	but it is [vb pp] that [adj]	25
15	[conj] it is hoped that [adj]	21
16	[conj] it is [vb pp] that some	16
17	[conj] it is thought that [adj]	16
18	[conj] it is [vb pp] that some	16
19	[conj] it is [vb pp] that these	15
20	[conj] it is [vb pp] that these	15
21	[conj] it is [vb pp] that such	14
22	[conj] it is [vb pp] that such	14
23	[conj] it is [vb pp] that [num]	13
24	[conj] it is believed that [adj]	10
25	[conj] it is known that [adj]	10
26	when it is [vb pp] that [adj]	8
27	[conj] it is accepted that [adj]	8
28	[conj] it is felt that [adj]	8
29	[conj] it is said that [adj]	8
30	[conj] it is estimated that [adj]	8