| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't [pers pn] [verb] | 1256 |
|
| 2 | do n't [pers pn] [adv] [verb] | 269 |
|
| 3 | why do n't [pers pn] [adv] | 150 |
|
| 4 | why do [pers pn] [adv] [verb] | 99 |
|
