| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] not been able | 340 |
|
| 2 | and [pron] [verb] not been | 175 |
|
| 3 | and [pron] [verb] been able | 17 |
|
| 4 | and [verb] not been able | 10 |
|
