SN4 ""

No	Pattern	Freq
1	it [verb] that	6779
2	it [vb -s] that	4263
3	it [vb past] that	2148
4	it [adj] that	1831
5	it [adj] that	1815
6	it seem that	1752
7	it be that	1400
8	it [be] that	1400
9	it seems that	1223
10	it clear that	963
11	it clear that	962
12	it appear that	918
13	it [is] that	804
14	it is that	704
15	it appears that	679
16	it mean that	668
17	it follow that	555
18	it seemed that	514
19	it follows that	501
20	it [was/were] that	481
21	it was that	476
22	it means that	438
23	it say that	331
24	it [adv] that	322
25	it [adv] that	276
26	it appeared that	221
27	it show that	213
28	it suggest that	202
29	it meant that	184
30	it so that	183