| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [prep] at the | 17 |
|
| 2 | [was/were] [vb pp] [prep] at the | 12 |
|
| 3 | were [verb] [prep] at the | 10 |
|
| 4 | was [verb] [prep] at the | 7 |
|
| 5 | [was/were] [v-ing] [prep] at the | 5 |
|
