| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [was/were] [v-ing] at [art] | 11 |
|
| 2 | [prep] [noun] [was/were] [v-ing] at the | 9 |
|
| 3 | [prep] [noun] was [v-ing] at [art] | 6 |
|
| 4 | [prep] [noun] were [v-ing] at [art] | 5 |
|
