| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [to-vb] at a | 13 |
|
| 2 | [was/were] [vb pp] [to-vb] at a | 10 |
|
| 3 | was [verb] [to-vb] at a | 9 |
|
