| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [modal v] [not/n't] a [noun] [vb infin] | 6 |
|
| 2 | why [vb mod] [adv] a [noun] [vb infin] | 6 |
|
| 3 | why [modal v] not a [noun] [vb infin] | 6 |
|
| 4 | why [modal v] [adv] a [noun] [vb infin] | 6 |
|
| 5 | why [modal v] n't a [noun] [vb infin] | 6 |
|
| 6 | why [modal v] [adv] a [noun] [vb infin] | 6 |
|
| 7 | why [modal v] [adv] a [noun sg] [vb infin] | 6 |
|
