| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [was/were] impossible to be [adj] | 7 |
|
| 2 | it [was/were] impossible to be [adj] | 7 |
|
| 3 | it [was/were] impossible to be [adj] | 7 |
|
| 4 | [pers pn] [was/were] impossible to be [adj] | 7 |
|
