SN4 ""

No	Pattern	Freq
1	[conj] it be impossible for [pron]	28
2	[that] it be impossible for [pron]	14
3	that it be impossible for [pron]	14
4	that it be impossible for [pron]	14
5	[coord] it be impossible for [pron]	11
6	[noun] it be impossible for [pron]	8
7	and it be impossible for [pron]	6
8	and it be impossible for [pron]	6
9	[noun sg] it be impossible for [pron]	5
10	it [vb mod] be impossible for [pron]	16
11	it [modal v] be impossible for [pron]	16
12	it would be impossible for [pron]	12
13	it would be impossible for [pron]	12
14	it be [adv] impossible for [pron]	22
15	it be [adv] impossible for [pron]	21
16	it be almost impossible for [pron]	6
17	it be virtually impossible for [pron]	6
18	it be almost impossible for [pron]	6
19	it be virtually impossible for [pron]	6
20	it be impossible for [pron] [verb]	52
21	it be impossible for [pron] [to-vb]	52
22	it be impossible for [pron] [prep]	7
23	it be impossible for [pron] [prep]	7
24	it be impossible for [pron] [adv]	7
25	it be impossible for [pron] not	6
26	it be impossible for [pron] [not/n't]	6
27	it be impossible for [pron] to	6
28	it be impossible for [pron] not	6
29	it be impossible for [pron] to	6