SN4 ""

No	Pattern	Freq
1	[conj] it [is] impossible [prep]	46
2	that it [is] impossible [prep]	16
3	[coord] it [is] impossible [prep]	16
4	that it [is] impossible [prep]	16
5	[that] it [is] impossible [prep]	16
6	[noun] it [is] impossible [prep]	14
7	[subord] it [is] impossible [prep]	14
8	[adv] it [is] impossible [prep]	13
9	[verb] it [is] impossible [prep]	11
10	and it [is] impossible [prep]	8
11	[adv] it [is] impossible [prep]	8
12	[noun pl] it [is] impossible [prep]	8
13	and it [is] impossible [prep]	8
14	but it [is] impossible [prep]	7
15	[vb base] it [is] impossible [prep]	7
16	but it [is] impossible [prep]	7
17	[noun sg] it [is] impossible [prep]	6
18	say it [is] impossible [prep]	5
19	[pron] it [is] impossible [prep]	5
20	[Wh adv] it [is] impossible [prep]	5
21	it [is] [adv] impossible [prep]	68
22	it [is] [adv] impossible [prep]	60
23	it [is] almost impossible [prep]	17
24	it [is] almost impossible [prep]	17
25	it [is] virtually impossible [prep]	10
26	it [is] virtually impossible [prep]	10
27	it [is] [not/n't] impossible [prep]	8
28	it [is] not impossible [prep]	8
29	it [is] not impossible [prep]	7
30	it [is] quite impossible [prep]	5