| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't [pers pn] [vb infin] | 1930 |
|
| 2 | why [verb] n't [pers pn] both | 7 |
|
| 3 | [verb] n't [pers pn] both [vb infin] | 7 |
|
