SN4 ""

No	Pattern	Freq
1	that it is [adj] [prep]	552
2	that it is [adj] [prep]	502
3	that it is [verb] [prep]	360
4	that it is [vb pp] [prep]	295
5	that it is [adv] [prep]	168
6	that it is [adv] [prep]	87
7	that it is [not/n't] [prep]	58
8	that it is not [prep]	58
9	that it is [v-ing] [prep]	57
10	that it is not [prep]	55
11	that it is [noun] [prep]	50
12	that it is [noun sg] [prep]	43
13	that it is possible [prep]	40
14	that it is possible [prep]	40
15	that it is only [prep]	35
16	that it is only [prep]	35
17	that it is [adv prt] [prep]	23
18	that it is good [prep]	23
19	that it is one [prep]	22
20	that it is [num] [prep]	22
21	that it is one [prep]	22
22	that it is difficult [prep]	21
23	that it is difficult [prep]	21
24	that it is [adj -er] [prep]	18
25	that it is impossible [prep]	16
26	that it is impossible [prep]	16
27	that it is up [prep]	16
28	that it is important [prep]	16
29	that it is up [prep]	16
30	that it is important [prep]	16