SN4 ""

No	Pattern	Freq
1	[adv] it is [adj] that	366
2	[adv] it is [adj] that	363
3	[adv] it is [verb] that	157
4	[adv] it is [vb pp] that	155
5	[adv] it is clear that	77
6	[adv] it is clear that	77
7	[adv] it is likely that	41
8	[adv] it is likely that	41
9	[adv] it is possible that	37
10	[adv] it is possible that	37
11	[adv] it is important that	31
12	[adv] it is important that	31
13	[adv] it is true that	22
14	[adv] it is true that	22
15	[adv] it is essential that	21
16	[adv] it is essential that	21
17	[adv] it is unlikely that	15
18	[adv] it is unlikely that	15
19	[adv] it is argued that	13
20	[adv] it is argue that	13
21	[adv] it is vital that	12
22	[adv] it is vital that	12
23	[adv] it is evident that	11
24	[adv] it is evident that	11
25	[adv] it is suggested that	11
26	[adv] it is suggest that	11
27	[adv] it is [adv] that	10
28	[adv] it is obvious that	10
29	[adv] it is said that	10
30	[adv] it is obvious that	10