SN4 ""

No	Pattern	Freq
1	it is not [adv] [adj] that	73
2	it is not [adv] [adj] that	62
3	it is not [adv] [verb] that	56
4	it is not [adv] [vb pp] that	32
5	it is not [adv] surprising that	21
6	it is not [adv] surprising that	21
7	it is not [adv] [noun] that	14
8	it is not [adv] [vb base] that	13
9	it is not [adv] clear that	11
10	it is not [adv] much that	11
11	it is not [adv] true that	11
12	it is not [adv] [det] that	11
13	it is not [adv] much that	11
14	it is not [adv] clear that	11
15	it is not [adv] true that	11
16	it is not [adv] [to-vb] that	10
17	it is not [adv] certain that	8
18	it is not [adv] certain that	8
19	it is not [adv] obvious that	8
20	it is not [adv] obvious that	8
21	it is not [adv] known that	7
22	it is not [adv] know that	7
23	it is not [adv] [noun pl] that	7
24	it is not [adv] realize that	5
25	it is not [adv] realized that	5
26	[conj] it is not [adv] that	9
27	[that] it is not [adv] that	5
28	that it is not [adv] that	5
29	that it is not [adv] that	5
30	it is not [adj] [adv] that	12