| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] able [to-vb] [art] | 743 |
|
| 2 | [be] able [to-vb] at [art] | 60 |
|
| 3 | [prep] [be] able [to-vb] at | 38 |
|
