| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but why [verb] n't you | 20 |
|
| 2 | but why do n't you | 19 |
|
| 3 | but why [vb past] n't you | 10 |
|
| 4 | but why did n't you | 10 |
|
| 5 | but why [vb base] n't you | 10 |
|
| 6 | but why do n't you | 9 |
|
