| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't | 2544 |
|
| 2 | [Wh adv] do n't | 1638 |
|
| 3 | [Wh adv] did n't | 747 |
|
| 4 | [Wh adv] does n't | 164 |
|
| 5 | when do n't | 7 |
|
| 6 | [Wh adv] do n't | 5 |
|
