SN4 ""

No	Pattern	Freq
1	[verb] it for she	91
2	[vb past] it for she	27
3	do it for she	22
4	[to-vb] it for she	20
5	[vb infin] it for she	13
6	[v-ing] it for she	12
7	[vb pp] it for she	10
8	[vb base] it for she	9
9	open it for she	8
10	to do it for she	6
11	done it for she	5
12	it [adj] for she	48
13	it [adj] for she	38
14	it [adv] for she	24
15	it [adv prt] for she	14
16	it easy for she	13
17	it difficult for she	12
18	it difficult for she	12
19	it [be] for she	10
20	it [adv] for she	10
21	it be for she	10
22	it [adj -er] for she	8
23	it impossible for she	8
24	it easier for she	8
25	it impossible for she	8
26	it [was/were] for she	7
27	it was for she	7
28	it open for she	6
29	it open for she	6
30	it [verb] for she	6