| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then why did n't [pers pn] [vb infin] | 17 |
|
| 2 | then [Wh adv] did n't [pers pn] [vb infin] | 17 |
|
| 3 | then [Wh adv] did n't you [vb infin] | 10 |
|
