| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [verb] at a | 222 |
|
| 2 | [det] [verb] at a | 55 |
|
| 3 | [det] were [verb] at | 42 |
|
| 4 | [det] were [verb] a | 28 |
|
