| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have not been possible | 47 |
|
| 2 | it have not been possible | 46 |
|
| 3 | [pers pn] have not been possible | 46 |
|
| 4 | it have not been possible | 46 |
|
| 5 | [pron] has not been possible | 38 |
|
| 6 | [pron] had not been possible | 9 |
|
