| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be at a [noun] | 762 |
|
| 2 | [be] at a [noun] | 762 |
|
| 3 | were [prep] a [noun] | 667 |
|
| 4 | were at [art] [noun] | 408 |
|
| 5 | [was/were] at a [noun] | 316 |
|
