| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't [pers pn] do it | 20 |
|
| 2 | why do [not/n't] [pers pn] do it | 15 |
|
| 3 | why do [not/n't] you do it | 12 |
|
| 4 | why did [not/n't] [pers pn] do it | 5 |
|
