SN4 ""

No	Pattern	Freq
1	[conj] it is [verb] that	934
2	[subord] it is [verb] that	503
3	[coord] it is [verb] that	403
4	and it is [verb] that	272
5	and it is [verb] that	272
6	[noun] it is [verb] that	210
7	if it is [verb] that	164
8	if it is [verb] that	164
9	[adv] it is [verb] that	157
10	[noun sg] it is [verb] that	139
11	but it is [verb] that	128
12	but it is [verb] that	128
13	[adv] it is [verb] that	115
14	when it is [verb] that	65
15	when it is [verb] that	65
16	where it is [verb] that	51
17	where it is [verb] that	51
18	[adj] it is [verb] that	50
19	although it is [verb] that	42
20	although it is [verb] that	42
21	[noun pl] it is [verb] that	41
22	[Wh adv] it is [verb] that	40
23	[pron] it is [verb] that	36
24	[verb] it is [verb] that	35
25	[Wh det] it is [verb] that	34
26	which it is [verb] that	33
27	which it is [verb] that	33
28	because it is [verb] that	30
29	because it is [verb] that	30
30	once it is [verb] that	29