SN4 ""

No	Pattern	Freq
1	it is [adj] that [noun sg]	381
2	it is clear that [noun sg]	76
3	it is clear that [noun sg]	76
4	it is true that [noun sg]	46
5	it is true that [noun sg]	46
6	it is likely that [noun sg]	38
7	it is likely that [noun sg]	38
8	it is possible that [noun sg]	34
9	it is possible that [noun sg]	34
10	it is important that [noun sg]	28
11	it is important that [noun sg]	28
12	it is unlikely that [noun sg]	27
13	it is unlikely that [noun sg]	27
14	it is essential that [noun sg]	15
15	it is essential that [noun sg]	15
16	it is evident that [noun sg]	12
17	it is evident that [noun sg]	12
18	it is obvious that [noun sg]	11
19	it is obvious that [noun sg]	11
20	it is probable that [noun sg]	9
21	it is probable that [noun sg]	9
22	it is vital that [noun sg]	6
23	it is [adj] that government	6
24	it is vital that [noun sg]	6
25	it is [adj] that management	5
26	it is conceivable that [noun sg]	5
27	it is [adj] that knowledge	5
28	it is conceivable that [noun sg]	5
29	it is [adj] that violence	5