SN4 ""

No	Pattern	Freq
1	[conj] it is [adj] that a	78
2	[subord] it is [adj] that a	34
3	[coord] it is [adj] that a	34
4	[adv] it is [adj] that a	22
5	and it is [adj] that a	21
6	and it is [adj] that a	21
7	[noun] it is [adj] that a	20
8	[adv] it is [adj] that a	16
9	[noun sg] it is [adj] that a	14
10	but it is [adj] that a	12
11	but it is [adj] that a	12
12	[that] it is [adj] that a	10
13	that it is [adj] that a	10
14	that it is [adj] that a	10
15	[verb] it is [adj] that a	7
16	if it is [adj] that a	6
17	if it is [adj] that a	6
18	while it is [adj] that a	5
19	although it is [adj] that a	5
20	[noun pl] it is [adj] that a	5
21	[Wh adv] it is [adj] that a	5
22	although it is [adj] that a	5
23	while it is [adj] that a	5
24	it is [adv] [adj] that a	151
25	it is [adv] [adj] that a	114
26	it is not [adj] that a	37
27	it is [not/n't] [adj] that a	37
28	it is not [adj] that a	37
29	it is also [adj] that a	13
30	it is also [adj] that a	13