SN4 ""

No	Pattern	Freq
1	[conj] it is [adj] that [det]	220
2	[coord] it is [adj] that [det]	143
3	and it is [adj] that [det]	91
4	and it is [adj] that [det]	91
5	[noun] it is [adj] that [det]	60
6	[subord] it is [adj] that [det]	53
7	but it is [adj] that [det]	47
8	but it is [adj] that [det]	47
9	[noun sg] it is [adj] that [det]	41
10	[adv] it is [adj] that [det]	35
11	[adv] it is [adj] that [det]	30
12	[that] it is [adj] that [det]	24
13	that it is [adj] that [det]	24
14	that it is [adj] that [det]	24
15	[verb] it is [adj] that [det]	16
16	[noun pl] it is [adj] that [det]	15
17	while it is [adj] that [det]	12
18	while it is [adj] that [det]	12
19	although it is [adj] that [det]	11
20	although it is [adj] that [det]	11
21	then it is [adj] that [det]	10
22	then it is [adj] that [det]	10
23	[vb base] it is [adj] that [det]	6
24	think it is [adj] that [det]	5
25	though it is [adj] that [det]	5
26	though it is [adj] that [det]	5
27	or it is [adj] that [det]	5
28	so it is [adj] that [det]	5
29	so it is [adj] that [det]	5
30	or it is [adj] that [det]	5