| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't you | 1632 |
|
| 2 | why do n't you | 1581 |
|
| 3 | why [vb base] n't you | 1208 |
|
| 4 | why do n't you | 1157 |
|
| 5 | why did n't you | 421 |
|
| 6 | why [vb past] n't you | 421 |
|
| 7 | why have n't you | 51 |
|
| 8 | why have n't you | 51 |
|
