SN4 ""

No	Pattern	Freq
1	it [verb] and	1382
2	it [verb] and	1382
3	it [vb -s] and	592
4	it [vb past] and	517
5	it [vb pp] and	74
6	it [to-vb] and	68
7	it [vb infin] and	66
8	it go and	52
9	it do and	50
10	it come and	44
11	it work and	42
12	it [v-ing] and	41
13	it happen and	26
14	it [vb base] and	24
15	it works and	21
16	it does and	20
17	it open and	19
18	it look and	19
19	it goes and	18
20	it comes and	17
21	it exist and	16
22	it start and	16
23	it came and	16
24	it happened and	15
25	it going and	15
26	it stop and	14
27	it looks and	14
28	it exists and	14
29	it opened and	14
30	it grow and	13