| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been able [verb] some | 20 |
|
| 2 | [verb] been able [to-vb] some | 20 |
|
| 3 | [vb infin] been able [verb] some | 5 |
|
| 4 | have been able [verb] some | 5 |
|
| 5 | [vb base] been able [verb] some | 5 |
|
| 6 | [vb past] been able [verb] some | 5 |
|
