No | Pattern | Freq | Relations |
---|---|---|---|
1 | it is often [adj] [verb] | 214 | |
2 | it is often [adj] [verb] | 189 | |
3 | it is [adv] impossible [verb] | 179 | |
4 | it is [adv] impossible [verb] | 174 | |
5 | it [be] often impossible [verb] | 9 | |
6 | it be often impossible [verb] | 9 | |
7 | it [is] often impossible [verb] | 8 | |
8 | it is often impossible [verb] | 8 | |
9 | [pron] is often impossible [verb] | 8 | |
10 | it is often impossible [verb] | 8 |