SN4 ""

No	Pattern	Freq
1	[conj] it be refer [prep]	18
2	that it be refer [prep]	8
3	[that] it be refer [prep]	8
4	that it be refer [prep]	8
5	[adv] it be refer [prep]	7
6	[subord] it be refer [prep]	6
7	[noun] it be refer [prep]	5
8	it [vb mod] be refer [prep]	13
9	it [modal v] be refer [prep]	13
10	it have be refer [prep]	7
11	it [verb] be refer [prep]	7
12	it [vb -s] be refer [prep]	6
13	it has be refer [prep]	5
14	it be [adv] refer [prep]	48
15	it be [adv] refer [prep]	48
16	it be [adj] refer [prep]	29
17	it be [adj] refer [prep]	28
18	it be often refer [prep]	11
19	it be sometimes refer [prep]	11
20	it be sometimes refer [prep]	11
21	it be often refer [prep]	11
22	it be necessary refer [prep]	8
23	it be necessary refer [prep]	8
24	it be [verb] refer [prep]	6
25	it be [vb pp] refer [prep]	5
26	it be usually refer [prep]	5
27	it be usually refer [prep]	5
28	it be refer to [prep]	17
29	it be refer [prep] [prep]	17
30	it be refer to [prep]	17