| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [verb] at a | 222 |
|
| 2 | [num] were [verb] at | 52 |
|
| 3 | [num] [verb] at a | 20 |
|
| 4 | [num] were [verb] a | 13 |
|
