| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] do n't | 9424 |
|
| 2 | why [verb] n't | 2764 |
|
| 3 | why do [adv] | 2651 |
|
| 4 | why do [not/n't] | 2594 |
|
| 5 | why do not | 2590 |
|
