| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [verb] at a | 222 |
|
| 2 | [Wh pn] were [verb] at | 65 |
|
| 3 | [Wh pn] were [verb] a | 49 |
|
| 4 | [Wh pn] [verb] at a | 39 |
|
