SN4 ""

No	Pattern	Freq
1	[adj] [noun] it is [adv] that	6
2	[prep] [noun] it is [adv] that	5
3	[prep] [noun] it is [adv] that	5
4	[noun] [conj] it is [adv] that	12
5	[noun] [coord] it is [adv] that	11
6	[noun] and it is [adv] that	10
7	[noun] and it is [adv] that	10
8	[noun] it is [adv] [adj] that	121
9	[noun] it is [adv] [adj] that	121
10	[noun] it is [adv] [verb] that	47
11	[noun] it is [adv] [vb pp] that	47
12	[noun] it is [adv] surprising that	24
13	[noun] it is [adv] surprising that	24
14	[noun] it is [adv] important that	16
15	[noun] it is [adv] important that	16
16	[noun] it is [adv] likely that	13
17	[noun] it is [adv] likely that	13
18	[noun] it is [adv] unlikely that	7
19	[noun] it is [adv] unlikely that	7
20	[noun] it is [adv] accept that	6
21	[noun] it is [adv] know that	6
22	[noun] it is [adv] certain that	6
23	[noun] it is [adv] accepted that	6
24	[noun] it is [adv] known that	6
25	[noun] it is [adv] certain that	6
26	[noun] it is [adv] assume that	5
27	[noun] it is [adv] assumed that	5
28	[noun] it is [adv] clear that	5
29	[noun] it is [adv] clear that	5
30	[noun] it is [adv] that [pron]	7