| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [to-vb] [pers pn] at | 15 |
|
| 2 | was [v-ing] [verb] [pers pn] at | 8 |
|
| 3 | [was/were] going [verb] [pers pn] at | 8 |
|
| 4 | were [v-ing] [verb] [pers pn] at | 7 |
|
