| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be able [to-vb] at [art] [noun] | 24 |
|
| 2 | be able [to-vb] at [art] [noun sg] | 23 |
|
| 3 | be able [to-vb] at the [noun] | 15 |
|
| 4 | be able [to-vb] at a [noun] | 8 |
|
| 5 | be able to look at [art] [noun] | 7 |
|
