| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [prep] a | 5287 |
|
| 2 | [was/were] [prep] a | 5287 |
|
| 3 | [was/were] at [art] | 2019 |
|
| 4 | [was/were] at [art] | 2019 |
|
| 5 | [be] at a | 1033 |
|
| 6 | [was/were] at a | 474 |
|
| 7 | [was/were] at a | 386 |
|
