| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] not [adv] been | 281 |
|
| 2 | [pron] [verb] [adv] been able | 236 |
|
| 3 | [pron] [verb] not been able | 169 |
|
| 4 | [verb] not [adv] been able | 21 |
|
