| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't [pron] [verb] | 2093 |
|
| 2 | [adv] [vb past] n't [pron] [verb] | 697 |
|
| 3 | why [vb past] [adv] [pron] [verb] | 674 |
|
| 4 | why [vb past] not [pron] [verb] | 674 |
|
| 5 | why [vb past] [not/n't] [pron] [verb] | 674 |
|
