| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't [pers pn] ask [pron] | 12 |
|
| 2 | [Wh adv] did n't [pers pn] ask [pers pn] | 10 |
|
| 3 | [Wh adv] did n't you ask [pron] | 8 |
|
