| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [pron] at the | 15 |
|
| 2 | [was/were] [v-ing] [pron] at the | 15 |
|
| 3 | was [v-ing] [pron] at the | 11 |
|
| 4 | [was/were] [v-ing] [pers pn] at the | 10 |
|
