SN4 ""

No	Pattern	Freq
1	[verb] made it impossible	25
2	have made it impossible	24
3	had made it impossible	7
4	[vb past] made it impossible	7
5	[vb base] made it impossible	6
6	[vb -s] made it impossible	6
7	have made it impossible	6
8	[vb infin] made it impossible	6
9	has made it impossible	5
10	made it [adv] impossible	5
11	made it [adv] impossible	5
12	made it impossible [prep]	15
13	made it impossible [prep]	15
14	made it impossible for	14
15	made it impossible for	14
16	made it impossible [to-vb]	11
17	made it impossible [verb]	11