SN4 ""

No	Pattern	Freq
1	[conj] it [is] [adv] that [art]	32
2	[coord] it [is] [adv] that [art]	21
3	and it [is] [adv] that [art]	17
4	and it [is] [adv] that [art]	17
5	[adv] it [is] [adv] that [art]	7
6	[noun] it [is] [adv] that [art]	7
7	[adv] it [is] [adv] that [art]	7
8	[subord] it [is] [adv] that [art]	7
9	[verb] it [is] [adv] that [art]	6
10	it [is] [adv] [adv] that [art]	72
11	it [is] not [adv] that [art]	43
12	it [is] [not/n't] [adv] that [art]	43
13	it [is] not [adv] that [art]	40
14	it [is] [adj] [adv] that [art]	32
15	it [is] [adj] [adv] that [art]	31
16	it [is] [adv] [adv] that [art]	29
17	it [is] [verb] [adv] that [art]	25
18	it [is] [vb pp] [adv] that [art]	23
19	it [is] only [adv] that [art]	17
20	it [is] only [adv] that [art]	17
21	it [is] clear [adv] that [art]	7
22	it [is] clear [adv] that [art]	7
23	it [is] [adv] [adj] that [art]	836
24	it [is] [adv] [adj] that [art]	829
25	it [is] [adv] [verb] that [art]	429
26	it [is] [adv] [vb pp] that [art]	412
27	it [is] [adv] likely that [art]	103
28	it [is] [adv] likely that [art]	103
29	it [is] [adv] clear that [art]	102
30	it [is] [adv] clear that [art]	101