| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [not/n't] [vb infin] in at | 9 |
|
| 2 | did [not/n't] [verb] in at | 9 |
|
| 3 | [vb past] n't [verb] in at | 7 |
|
