SN4 ""

No	Pattern	Freq
1	it [adj] that [noun]	231
2	it [adj] that [noun]	231
3	it [adj] that [noun prp]	119
4	it clear that [noun]	93
5	it clear that [noun]	93
6	it [adj] that [noun pl]	52
7	it [adj] that [noun sg]	51
8	it possible that [noun]	19
9	it possible that [noun]	19
10	it unlikely that [noun]	16
11	it unlikely that [noun]	16
12	it true that [noun]	13
13	it true that [noun]	13
14	it likely that [noun]	9
15	it likely that [noun]	9
16	it plain that [noun]	7
17	it plain that [noun]	7
18	it [adj] that mr	7
19	it [adj] that [n mass]	7
20	it [adj] that mr	7
21	it odd that [noun]	6
22	it odd that [noun]	6
23	it [adj] that people	6
24	it [adj] that people	6
25	it essential that [noun]	5
26	it essential that [noun]	5