| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be impossible for [pron] [verb] | 14 |
|
| 2 | be impossible for [pron] [verb] | 14 |
|
| 3 | be impossible for [pron] [to-vb] | 14 |
|
| 4 | be impossible for [pers pn] [verb] | 11 |
|
