| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't [pers pn] ask | 56 |
|
| 2 | why do [not/n't] you ask | 51 |
|
| 3 | why do [not/n't] [pers pn] ask | 37 |
|
| 4 | why did [not/n't] [pers pn] ask | 18 |
|
