| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did not they [vb infin] | 43 |
|
| 2 | [Wh adv] did n't they [vb infin] | 43 |
|
| 3 | [Wh adv] did not they get | 5 |
|
| 4 | [Wh adv] did not they do | 5 |
|
