| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [noun] [vb infin] [det] | 22 |
|
| 2 | why [vb base] [noun] [vb infin] [adj] | 19 |
|
| 3 | [adv] [vb base] [noun] [vb infin] [det] | 17 |
|
| 4 | why [vb base] [noun] [verb] [det] | 12 |
|
