| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] [noun] [noun] | 105 |
|
| 2 | why [modal v] [adv] [noun] | 65 |
|
| 3 | why [modal v] [noun] [noun] | 26 |
|
| 4 | why [adv] [noun] [noun] | 16 |
|
