SN4 ""

No	Pattern	Freq
1	it [is] [adj] [conj] the [noun sg]	1246
2	it [is] [adj] [conj] the [noun sg]	1245
3	it [is] [adj] [conj] the [noun sg]	1201
4	it is [adj] [conj] the [noun sg]	1146
5	it [is] [adj] that the [noun sg]	1096
6	it [is] [adj] [that] the [noun sg]	1096
7	it [is] [adj] that the [noun sg]	1096
8	it [is] clear [conj] the [noun sg]	181
9	it [is] clear [conj] the [noun sg]	181
10	it [is] [adj] [subord] the [noun sg]	122
11	it [is] important [conj] the [noun sg]	120
12	it [is] important [conj] the [noun sg]	120
13	it 's [adj] [conj] the [noun sg]	100
14	it [is] possible [conj] the [noun sg]	88
15	it [is] possible [conj] the [noun sg]	88
16	it [is] likely [conj] the [noun sg]	87
17	it [is] likely [conj] the [noun sg]	87
18	it [is] true [conj] the [noun sg]	72
19	it [is] true [conj] the [noun sg]	72
20	it [is] unlikely [conj] the [noun sg]	57
21	it [is] unlikely [conj] the [noun sg]	57
22	it [is] essential [conj] the [noun sg]	53
23	it [is] essential [conj] the [noun sg]	53
24	it [is] [adj] whether the [noun sg]	45
25	it [is] [adj] whether the [noun sg]	45
26	it [is] [adj] [conj] the government	30
27	it [is] probable [conj] the [noun sg]	29
28	it [is] [adj] than the [noun sg]	29
29	it [is] [adj] than the [noun sg]	29
30	it [is] probable [conj] the [noun sg]	29