| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] at [art] | 1028 |
|
| 2 | [v-ing] [pron] at [art] | 332 |
|
| 3 | [was/were] [v-ing] [pron] [art] | 246 |
|
| 4 | [was/were] [v-ing] [pron] at | 60 |
|
| 5 | [was/were] [pron] at [art] | 36 |
|
