| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [prep] a [adj] [noun] | 6748 |
|
| 2 | [be] [verb] at a [adj] [noun] | 968 |
|
| 3 | [was/were] [verb] at [art] [adj] [noun] | 819 |
|
