| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] at the time | 208 |
|
| 2 | [was/were] [not/n't] [verb] at the | 84 |
|
| 3 | [not/n't] [verb] at the time | 82 |
|
| 4 | [was/were] [not/n't] at the time | 7 |
|
