| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] able [to-vb] [art] | 873 |
|
| 2 | able [to-vb] at [art] | 67 |
|
| 3 | [was/were] [to-vb] at [art] | 50 |
|
| 4 | [was/were] able [to-vb] at | 41 |
|
