| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [verb] [prep] a [noun] | 2827 |
|
| 2 | be [verb] at a [noun] | 1238 |
|
| 3 | [be] [verb] at a [noun] | 1238 |
|
| 4 | were [verb] at [art] [noun] | 707 |
|
| 5 | [was/were] [verb] at a [noun] | 507 |
|
