| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then why do n't [pers pn] [verb] | 17 |
|
| 2 | then why do n't [pers pn] [vb infin] | 17 |
|
| 3 | then why do n't [pers pn] [adv] | 5 |
|
| 4 | then why do n't [pers pn] [adv] | 5 |
|
