| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [noun] [vb infin] [det] | 22 |
|
| 2 | [adv] [vb past] [noun] [vb infin] [det] | 20 |
|
| 3 | why [vb past] [noun] [verb] [det] | 9 |
|
| 4 | why [vb past] [noun] [vb infin] [adj] | 7 |
|
