SN4 ""

No	Pattern	Freq
1	[conj] it is [vb pp] that the	254
2	[subord] it is [vb pp] that the	159
3	[coord] it is [vb pp] that the	87
4	and it is [vb pp] that the	60
5	and it is [vb pp] that the	60
6	if it is [vb pp] that the	55
7	if it is [vb pp] that the	55
8	[noun] it is [vb pp] that the	53
9	[adv] it is [vb pp] that the	42
10	[noun sg] it is [vb pp] that the	35
11	[adv] it is [vb pp] that the	33
12	but it is [vb pp] that the	27
13	but it is [vb pp] that the	27
14	where it is [vb pp] that the	21
15	where it is [vb pp] that the	21
16	when it is [vb pp] that the	17
17	when it is [vb pp] that the	17
18	[adj] it is [vb pp] that the	15
19	although it is [vb pp] that the	13
20	although it is [vb pp] that the	13
21	once it is [vb pp] that the	12
22	[noun pl] it is [vb pp] that the	12
23	once it is [vb pp] that the	12
24	[num] it is [vb pp] that the	10
25	which it is [vb pp] that the	10
26	[pron] it is [vb pp] that the	10
27	which it is [vb pp] that the	10
28	[Wh det] it is [vb pp] that the	10
29	that it is [vb pp] that the	8
30	[verb] it is [vb pp] that the	8