| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] not [pron] [verb] | 2107 |
|
| 2 | [conj] [verb] not [pron] [verb] | 298 |
|
| 3 | [conj] why [verb] [pron] [verb] | 229 |
|
| 4 | [conj] why [verb] not [pron] | 83 |
|
