| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] at the same time | 72 |
|
| 2 | [was/were] [vb pp] at the [det] time | 60 |
|
| 3 | was [verb] at the [det] time | 38 |
|
| 4 | were [verb] at the [det] time | 34 |
|
| 5 | [was/were] [v-ing] at the [det] time | 11 |
|
