| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't [pers pn] | 2464 |
|
| 2 | [vb past] [verb] n't [pers pn] | 150 |
|
| 3 | [vb past] why [verb] n't | 27 |
|
| 4 | [vb past] why [verb] [pers pn] | 16 |
|
