| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't [pers pn] | 664 |
|
| 2 | [Wh adv] did n't you | 422 |
|
| 3 | [Wh adv] did n't he | 82 |
|
| 4 | [Wh adv] did n't they | 51 |
|
| 5 | [Wh adv] did n't she | 46 |
|
| 6 | [Wh adv] did n't i | 46 |
|
| 7 | [Wh adv] did n't we | 12 |
|
