SN4 ""

No	Pattern	Freq
1	[conj] it is [adj] that [noun]	243
2	[coord] it is [adj] that [noun]	124
3	[subord] it is [adj] that [noun]	96
4	and it is [adj] that [noun]	78
5	and it is [adj] that [noun]	78
6	[noun] it is [adj] that [noun]	78
7	[noun sg] it is [adj] that [noun]	48
8	but it is [adj] that [noun]	46
9	but it is [adj] that [noun]	46
10	[adv] it is [adj] that [noun]	44
11	[adv] it is [adj] that [noun]	40
12	[verb] it is [adj] that [noun]	29
13	[noun pl] it is [adj] that [noun]	24
14	that it is [adj] that [noun]	23
15	that it is [adj] that [noun]	23
16	[that] it is [adj] that [noun]	23
17	if it is [adj] that [noun]	22
18	if it is [adj] that [noun]	22
19	although it is [adj] that [noun]	16
20	although it is [adj] that [noun]	16
21	so it is [adj] that [noun]	13
22	so it is [adj] that [noun]	13
23	[vb base] it is [adj] that [noun]	12
24	[adj] it is [adj] that [noun]	12
25	while it is [adj] that [noun]	12
26	while it is [adj] that [noun]	12
27	then it is [adj] that [noun]	8
28	though it is [adj] that [noun]	8
29	though it is [adj] that [noun]	8
30	then it is [adj] that [noun]	8