SN4 ""

No	Pattern	Freq
1	it [be] [adj] that [noun]	1789
2	it be [adj] that [noun]	1789
3	it [be] [adj] that [noun]	1778
4	it [is] [adj] that [noun]	1450
5	it is [adj] that [noun]	1306
6	it [be] [adj] that [noun prp]	732
7	it [be] [adj] that [noun pl]	519
8	it [be] [adj] that [noun sg]	458
9	it [was/were] [adj] that [noun]	339
10	it was [adj] that [noun]	334
11	it [be] clear that [noun]	303
12	it [be] clear that [noun]	303
13	it [be] true that [noun]	182
14	it [be] true that [noun]	182
15	it 's [adj] that [noun]	144
16	it [be] likely that [noun]	133
17	it [be] likely that [noun]	132
18	it [be] possible that [noun]	131
19	it [be] possible that [noun]	131
20	it [be] important that [noun]	130
21	it [be] important that [noun]	130
22	it [be] unlikely that [noun]	88
23	it [be] unlikely that [noun]	88
24	it [be] obvious that [noun]	69
25	it [be] obvious that [noun]	69
26	it [be] [adj] that [n mass]	68
27	it [be] essential that [noun]	62
28	it [be] essential that [noun]	62
29	it [be] [adj] that people	50
30	it [be] [adj] that people	50