| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] not been able | 169 |
|
| 2 | [pron] [verb] not yet been | 114 |
|
| 3 | [verb] not yet been able | 13 |
|
| 4 | [pron] [verb] yet been able | 5 |
|
