SN4 ""

No	Pattern	Freq
1	it is [adj] that the [adj]	468
2	it is [adj] that the [adj]	467
3	it is clear that the [adj]	77
4	it is clear that the [adj]	77
5	it is likely that the [adj]	47
6	it is possible that the [adj]	47
7	it is possible that the [adj]	47
8	it is likely that the [adj]	46
9	it is true that the [adj]	40
10	it is true that the [adj]	40
11	it is important that the [adj]	30
12	it is important that the [adj]	30
13	it is evident that the [adj]	22
14	it is evident that the [adj]	22
15	it is unlikely that the [adj]	17
16	it is unlikely that the [adj]	17
17	it is probable that the [adj]	15
18	it is essential that the [adj]	15
19	it is probable that the [adj]	15
20	it is essential that the [adj]	15
21	it is vital that the [adj]	12
22	it is significant that the [adj]	12
23	it is [adj] that the new	12
24	it is significant that the [adj]	12
25	it is vital that the [adj]	12
26	it is obvious that the [adj]	11
27	it is [adj] that the present	11
28	it is arguable that the [adj]	11
29	it is arguable that the [adj]	11
30	it is [adj] that the labour	11