SN4 ""

No	Pattern	Freq
1	[verb] it [to-vb] the [adj] [noun]	64
2	[v-ing] it [to-vb] the [adj] [noun]	15
3	[prep] it [to-vb] the [adj] [noun]	14
4	[prep] it [to-vb] the [adj] [noun]	14
5	use it [to-vb] the [adj] [noun]	14
6	allow it [to-vb] the [adj] [noun]	11
7	[to-vb] it [to-vb] the [adj] [noun]	11
8	[vb past] it [to-vb] the [adj] [noun]	11
9	[vb infin] it [to-vb] the [adj] [noun]	11
10	[vb base] it [to-vb] the [adj] [noun]	10
11	enable it [to-vb] the [adj] [noun]	7
12	for it [to-vb] the [adj] [noun]	5
13	allowing it [to-vb] the [adj] [noun]	5
14	for it [to-vb] the [adj] [noun]	5
15	it [verb] [to-vb] the [adj] [noun]	178
16	it [adj] [to-vb] the [adj] [noun]	131
17	it [adj] [to-vb] the [adj] [noun]	115
18	it [vb -s] [to-vb] the [adj] [noun]	108
19	it [vb past] [to-vb] the [adj] [noun]	60
20	it be [to-vb] the [adj] [noun]	56
21	it [be] [to-vb] the [adj] [noun]	56
22	it difficult [to-vb] the [adj] [noun]	35
23	it difficult [to-vb] the [adj] [noun]	35
24	it [is] [to-vb] the [adj] [noun]	30
25	it is [to-vb] the [adj] [noun]	27
26	it [was/were] [to-vb] the [adj] [noun]	26
27	it was [to-vb] the [adj] [noun]	24
28	it possible [to-vb] the [adj] [noun]	20
29	it possible [to-vb] the [adj] [noun]	20
30	it easy [to-vb] the [adj] [noun]	18