SN4 ""

No	Pattern	Freq
1	[pron] it is that [verb]	53
2	[Wh det] it is that [verb]	50
3	what it is that [verb]	41
4	what it is that [verb]	41
5	whatever it is that [verb]	9
6	whatever it is that [verb]	9
7	[noun sg] it is that [verb]	5
8	[noun] it is that [verb]	5
9	it is [adj] that [verb]	129
10	it is [adj] that [verb]	92
11	it is [noun] that [verb]	54
12	it is [noun sg] that [verb]	46
13	it is [verb] that [verb]	44
14	it is [vb pp] that [verb]	43
15	it is [det] that [verb]	37
16	it is [pron] that [verb]	30
17	it is this that [verb]	28
18	it is this that [verb]	28
19	it is [indef pn] that [verb]	25
20	it is one that [verb]	15
21	it is one that [verb]	15
22	it is clear that [verb]	11
23	it is clear that [verb]	11
24	it is true that [verb]	10
25	it is something that [verb]	10
26	it is something that [verb]	10
27	it is true that [verb]	10
28	it is possible that [verb]	9
29	it is these that [verb]	9
30	it is these that [verb]	9