| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pers pn] [adv] | 201 |
|
| 2 | [verb] why do [not/n't] [pers pn] | 56 |
|
| 3 | [verb] do [not/n't] [pers pn] [adv] | 5 |
|
