SN4 ""

No	Pattern	Freq
1	[conj] it [adv] [adv] have	19
2	[verb] it [adv] [adv] have	15
3	[subord] it [adv] [adv] have	9
4	[that] it [adv] [adv] have	7
5	that it [adv] [adv] have	7
6	that it [adv] [adv] have	7
7	[vb pp] it [adv] [adv] have	5
8	it [vb mod] [adv] [adv] have	83
9	it [modal v] [adv] [adv] have	83
10	it [verb] [adv] [adv] have	48
11	it do [adv] [adv] have	35
12	it could [adv] [adv] have	35
13	it could [adv] [adv] have	35
14	it [vb -s] [adv] [adv] have	31
15	it [be] [adv] [adv] have	27
16	it be [adv] [adv] have	27
17	it does [adv] [adv] have	21
18	it [is] [adv] [adv] have	19
19	it would [adv] [adv] have	17
20	it would [adv] [adv] have	17
21	it [vb past] [adv] [adv] have	16
22	it did [adv] [adv] have	13
23	it is [adv] [adv] have	12
24	it may [adv] [adv] have	11
25	it may [adv] [adv] have	11
26	it have [adv] [adv] have	10
27	it has [adv] [adv] have	9
28	it might [adv] [adv] have	9
29	it might [adv] [adv] have	9
30	it [was/were] [adv] [adv] have	8