| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't [verb] for a while | 9 |
|
| 2 | [verb] not [vb pp] for a while | 8 |
|
| 3 | have not [verb] for a while | 8 |
|
| 4 | [vb past] not [verb] for a while | 6 |
|
