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	[noun] it is [vb pp] that	201
7	if it is [vb pp] that	164
8	if it is [vb pp] that	164
9	[adv] it is [vb pp] that	155
10	[noun sg] it is [vb pp] that	131
11	but it is [vb pp] that	121
12	but it is [vb pp] that	121
13	[adv] it is [vb pp] that	113
14	when it is [vb pp] that	65
15	when it is [vb pp] that	65
16	where it is [vb pp] that	51
17	where it is [vb pp] that	51
18	[adj] it is [vb pp] that	46
19	although it is [vb pp] that	42
20	although it is [vb pp] that	42
21	[noun pl] it is [vb pp] that	40
22	[Wh adv] it is [vb pp] that	40
23	[pron] it is [vb pp] that	35
24	[Wh det] it is [vb pp] that	33
25	[verb] it is [vb pp] that	32
26	which it is [vb pp] that	32
27	which it is [vb pp] that	32
28	once it is [vb pp] that	29
29	because it is [vb pp] that	29
30	once it is [vb pp] that	29