| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [not/n't] [vb pp] at the time | 18 |
|
| 2 | [was/were] [not/n't] [vb pp] at the time | 18 |
|
| 3 | [was/were] not [vb pp] at the time | 15 |
|
| 4 | was [not/n't] [vb pp] at the time | 15 |
|
