SN4 ""

No	Pattern	Freq
1	it be [conj] [noun prp] was	24
2	it be [subord] [noun prp] was	18
3	it be because [noun prp] was	6
4	it be [adv] [noun prp] was	6
5	it be because [noun prp] was	6
6	it be [vb pp] [noun prp] was	6
7	it be while [noun prp] was	6
8	it be while [noun prp] was	6
9	it be [verb] [noun prp] was	6
10	it be [adj] [noun prp] was	6
11	it be [adj] [noun prp] was	5
12	it be [noun] [noun prp] was	5
13	it be [that] [noun prp] was	5
14	it be that [noun prp] was	5
15	it be that [noun prp] was	5
16	it be [noun prp] [pron] was	67
17	it be [noun prp] [Wh pn] was	60
18	it be [noun prp] who was	60
19	it be [noun prp] who was	60
20	it be [noun prp] [conj] was	8
21	it be [noun prp] [pers pn] was	7
22	it be [noun prp] [that] was	7
23	it be [noun prp] that was	7
24	it be [noun prp] that was	7
25	it be [noun prp] [noun] was	5
26	it be [noun prp] was [not/n't]	11
27	it be [noun prp] was [adv]	11
28	it be [noun prp] was not	10
29	it be [noun prp] was n't	10