| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb mod] a [adj] [noun] | 15 |
|
| 2 | why [modal v] a [adj] [noun sg] | 14 |
|
| 3 | why [modal v] a [adj] [noun] | 14 |
|
| 4 | why should a [adj] [noun] | 9 |
|
| 5 | why should a [adj] [noun] | 9 |
|
| 6 | why would a [adj] [noun] | 6 |
|
| 7 | why would a [adj] [noun] | 6 |
|
