| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was able [to-vb] at the [noun sg] | 6 |
|
| 2 | [was/were] able [to-vb] at the [noun sg] | 6 |
|
| 3 | [was/were] able [to-vb] at the [noun sg] | 6 |
|
