| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [noun] [vb infin] | 216 |
|
| 2 | [adv] [vb -s] [noun] [vb infin] | 165 |
|
| 3 | why [vb -s] [noun] [verb] | 57 |
|
