| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] able [to-vb] [prep] a [noun sg] | 21 |
|
| 2 | [was/were] able [to-vb] [prep] a [noun sg] | 21 |
|
| 3 | was able [to-vb] [prep] a [noun sg] | 12 |
|
| 4 | were able [to-vb] [prep] a [noun sg] | 9 |
|
