| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at [art] | 15401 |
|
| 2 | [was/were] [vb pp] at | 6660 |
|
| 3 | [was/were] [vb pp] [art] | 5596 |
|
| 4 | [was/were] at [art] | 2019 |
|
