SN4 ""

No	Pattern	Freq
1	[noun] [conj] it [is] [to-vb] the	16
2	[noun sg] [conj] it [is] [to-vb] the	13
3	[verb] [conj] it [is] [to-vb] the	11
4	[adj] [conj] it [is] [to-vb] the	9
5	[adj] [conj] it [is] [to-vb] the	7
6	[conj] it [is] [adj] [to-vb] the	459
7	[conj] it [is] [adj] [to-vb] the	424
8	[conj] it [is] possible [to-vb] the	70
9	[conj] it [is] [verb] [to-vb] the	70
10	[conj] it [is] possible [to-vb] the	70
11	[conj] it [is] [vb pp] [to-vb] the	47
12	[conj] it [is] difficult [to-vb] the	45
13	[conj] it [is] difficult [to-vb] the	45
14	[conj] it [is] easy [to-vb] the	35
15	[conj] it [is] important [to-vb] the	35
16	[conj] it [is] important [to-vb] the	35
17	[conj] it [is] necessary [to-vb] the	33
18	[conj] it [is] necessary [to-vb] the	33
19	[conj] it [is] impossible [to-vb] the	28
20	[conj] it [is] impossible [to-vb] the	28
21	[conj] it [is] good [to-vb] the	27
22	[conj] it [is] [adj -er] [to-vb] the	26
23	[conj] it [is] easy [to-vb] the	25
24	[conj] it [is] hard [to-vb] the	21
25	[conj] it [is] [v-ing] [to-vb] the	21
26	[conj] it [is] hard [to-vb] the	20
27	[conj] it [is] essential [to-vb] the	14
28	[conj] it [is] essential [to-vb] the	14
29	[conj] it [is] better [to-vb] the	12
30	[conj] it [is] go [to-vb] the	11