| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it was impossible [verb] | 359 |
|
| 2 | it was [verb] [det] | 327 |
|
| 3 | was impossible [verb] [det] | 22 |
|
| 4 | it impossible [verb] [det] | 20 |
|
