| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [was/were] [verb] at | 5037 |
|
| 2 | [noun] [was/were] [verb] an | 512 |
|
| 3 | [noun] [verb] at an | 267 |
|
| 4 | [was/were] [verb] at an | 119 |
|
| 5 | [noun] [was/were] at an | 60 |
|
