| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb mod] [pron] [not/n't] [adv] | 6 |
|
| 2 | why [modal v] [pron] not [adv] | 6 |
|
| 3 | why [modal v] [pron] [not/n't] [adv] | 6 |
|
| 4 | why [modal v] [pers pn] [not/n't] [adv] | 6 |
|
