| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] at the [adj] time [v-ing] | 8 |
|
| 2 | [was/were] at the [det] time [v-ing] | 8 |
|
| 3 | [was/were] at the same time [v-ing] | 8 |
|
| 4 | [was/were] at the same time [v-ing] | 8 |
|
| 5 | was at the [adj] time [v-ing] | 7 |
|
