| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] n't been [verb] | 272 |
|
| 2 | [pron] [vb past] been able [verb] | 218 |
|
| 3 | [vb past] n't been able [verb] | 93 |
|
| 4 | [pron] [vb past] n't been able | 73 |
|
