SN4 ""

No	Pattern	Freq
1	[conj] it refer [prep]	49
2	[subord] it refer [prep]	29
3	[verb] it refer [prep]	14
4	[noun] it refer [prep]	12
5	[that] it refer [prep]	12
6	that it refer [prep]	12
7	that it refer [prep]	12
8	[adv] it refer [prep]	9
9	[coord] it refer [prep]	8
10	[noun sg] it refer [prep]	8
11	[pron] it refer [prep]	7
12	[Wh det] it refer [prep]	7
13	if it refer [prep]	6
14	if it refer [prep]	6
15	[adv] it refer [prep]	6
16	since it refer [prep]	6
17	since it refer [prep]	6
18	when it refer [prep]	5
19	when it refer [prep]	5
20	and it refer [prep]	5
21	and it refer [prep]	5
22	it be refer [prep]	45
23	it [be] refer [prep]	45
24	it [adv] refer [prep]	25
25	it [adv] refer [prep]	25
26	it [modal v] refer [prep]	20
27	it [vb mod] refer [prep]	20
28	it [is] refer [prep]	19
29	it is refer [prep]	17
30	it [was/were] refer [prep]	14