| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] impossible [verb] | 27 |
|
| 2 | it [vb -s] impossible [to-vb] | 27 |
|
| 3 | it seems impossible [verb] | 12 |
|
| 4 | it becomes impossible [verb] | 9 |
|
