SN4 ""

No	Pattern	Freq
1	[subord] it is [vb pp] that [noun]	67
2	[conj] it is [vb pp] that [noun pl]	57
3	[coord] it is [vb pp] that [noun]	48
4	[conj] it is [vb pp] that [noun sg]	32
5	and it is [vb pp] that [noun]	31
6	and it is [vb pp] that [noun]	31
7	[conj] it is [vb pp] that [noun prp]	28
8	if it is [vb pp] that [noun]	22
9	if it is [vb pp] that [noun]	22
10	but it is [vb pp] that [noun]	15
11	but it is [vb pp] that [noun]	15
12	[conj] it is hoped that [noun]	13
13	[conj] it is known that [noun]	12
14	when it is [vb pp] that [noun]	12
15	when it is [vb pp] that [noun]	12
16	[conj] it is expected that [noun]	8
17	although it is [vb pp] that [noun]	7
18	[conj] it is assumed that [noun]	7
19	where it is [vb pp] that [noun]	7
20	where it is [vb pp] that [noun]	7
21	[conj] it is accepted that [noun]	7
22	although it is [vb pp] that [noun]	7
23	[conj] it is believed that [noun]	6
24	[conj] it is understood that [noun]	6
25	since it is [vb pp] that [noun]	5
26	that it is [vb pp] that [noun]	5
27	that it is [vb pp] that [noun]	5
28	[that] it is [vb pp] that [noun]	5
29	since it is [vb pp] that [noun]	5
30	[conj] it is recognised that [noun]	5