SN4 ""

No	Pattern	Freq
1	it be [adv] that [adj] [noun]	29
2	it [be] [adv] that [adj] [noun]	29
3	it [is] [adv] that [adj] [noun]	23
4	it 's [adv] that [adj] [noun]	12
5	it is [adv] that [adj] [noun]	11
6	it [verb] [adv] that [adj] [noun]	8
7	it [vb -s] [adv] that [adj] [noun]	7
8	it was [adv] that [adj] [noun]	6
9	it [was/were] [adv] that [adj] [noun]	6
10	it [adv] [verb] that [adj] [noun]	88
11	it [adv] [vb -s] that [adj] [noun]	62
12	it [adv] [adj] that [adj] [noun]	39
13	it [adv] [adj] that [adj] [noun]	39
14	it [adv] [vb past] that [adj] [noun]	23
15	it [adv] mean that [adj] [noun]	15
16	it [adv] means that [adj] [noun]	12
17	it [adv] likely that [adj] [noun]	10
18	it [adv] follow that [adj] [noun]	10
19	it [adv] follows that [adj] [noun]	10
20	it [adv] likely that [adj] [noun]	10
21	it [adv] clear that [adj] [noun]	10
22	it [adv] clear that [adj] [noun]	10
23	it [adv] happens that [adj] [noun]	7
24	it [adv] happen that [adj] [noun]	7
25	it [adv] seem that [adj] [noun]	5
26	it [adv] say that [adj] [noun]	5