| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have not [adv] been | 403 |
|
| 2 | [pron] have not been possible | 48 |
|
| 3 | [pron] have [adv] been possible | 16 |
|
| 4 | have not [adv] been possible | 7 |
|
