| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at [prep] | 490 |
|
| 2 | be [verb] at [prep] | 490 |
|
| 3 | were [verb] [prep] [prep] | 389 |
|
| 4 | were [verb] [prep] [prep] | 388 |
|
| 5 | [was/were] [verb] at [prep] | 100 |
|
| 6 | were [verb] at [prep] | 31 |
|
