| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adv] at the | 505 |
|
| 2 | [adv] at the time | 496 |
|
| 3 | [was/were] at the time | 102 |
|
| 4 | [was/were] [adv] the time | 78 |
|
