| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] not [pron] | 2526 |
|
| 2 | [coord] [verb] not [pron] | 397 |
|
| 3 | [coord] why [verb] [pron] | 291 |
|
| 4 | [coord] why [verb] not | 112 |
|
