| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't | 2544 |
|
| 2 | why do n't | 1634 |
|
| 3 | why did n't | 744 |
|
| 4 | why does n't | 161 |
|
| 5 | why do n't | 5 |
|
