| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] at the | 816 |
|
| 2 | [conj] [v-ing] at the | 469 |
|
| 3 | [conj] [was/were] [v-ing] the | 178 |
|
| 4 | [conj] [was/were] [v-ing] at | 64 |
|
| 5 | [conj] [was/were] at the | 38 |
|
