| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at [noun] | 11283 |
|
| 2 | [was/were] [vb pp] at | 6660 |
|
| 3 | [was/were] [vb pp] [noun] | 4324 |
|
| 4 | [was/were] at [noun] | 2068 |
|
