SN4 ""

No	Pattern	Freq
1	[subord] it is [adv] [adv] that	7
2	[subord] it is [adv] [adv] that	6
3	[subord] it is [adv] [adj] that	116
4	[subord] it is [adv] [adj] that	115
5	[subord] it is [adv] [verb] that	73
6	[subord] it is [adv] [vb pp] that	72
7	[subord] it is [adv] true that	20
8	[subord] it is [adv] true that	20
9	[subord] it is [adv] possible that	16
10	[subord] it is [adv] possible that	16
11	[subord] it is [adv] known that	11
12	[subord] it is [adv] know that	11
13	[subord] it is [adv] clear that	10
14	[subord] it is [adv] clear that	10
15	[subord] it is [adv] surprising that	9
16	[subord] it is [adv] surprising that	9
17	[subord] it is [adv] accepted that	8
18	[subord] it is [adv] accept that	8
19	[subord] it is [adv] obvious that	7
20	[subord] it is [adv] unlikely that	7
21	[subord] it is [adv] obvious that	7
22	[subord] it is [adv] unlikely that	7
23	[subord] it is [adv] recognised that	7
24	[subord] it is [adv] recognise that	7
25	[subord] it is [adv] likely that	6
26	[subord] it is [adv] [adv] that	6
27	[subord] it is [adv] likely that	6
28	[subord] it is [adv] [adv] that	6
29	[subord] it is [adv] assumed that	5
30	[subord] it is [adv] assume that	5