SN4 ""

No	Pattern	Freq
1	[verb] it [to-vb] that	89
2	[vb base] it [to-vb] that	64
3	suffice it [to-vb] that	58
4	suffice it [to-vb] that	58
5	[be] it [to-vb] that	12
6	be it [to-vb] that	12
7	is it [to-vb] that	11
8	[is] it [to-vb] that	11
9	[prep] it [to-vb] that	9
10	[prep] it [to-vb] that	9
11	[vb past] it [to-vb] that	8
12	[vb infin] it [to-vb] that	5
13	[v-ing] it [to-vb] that	5
14	it [adj] [to-vb] that	188
15	it [adj] [to-vb] that	178
16	it [verb] [to-vb] that	133
17	it [vb -s] [to-vb] that	77
18	it be [to-vb] that	65
19	it [be] [to-vb] that	65
20	it hard [to-vb] that	55
21	it hard [to-vb] that	54
22	it difficult [to-vb] that	41
23	it difficult [to-vb] that	41
24	it [is] [to-vb] that	40
25	it is [to-vb] that	37
26	it [vb past] [to-vb] that	36
27	it seem [to-vb] that	24
28	it [was/were] [to-vb] that	22
29	it mean [to-vb] that	20
30	it was [to-vb] that	20