| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] able to be [verb] | 49 |
|
| 2 | [be] able [prep] be [verb] | 49 |
|
| 3 | be able [prep] be [verb] | 49 |
|
| 4 | [be] able [prep] be [vb pp] | 47 |
|
