| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb mod] [pron] [verb] this [noun] | 5 |
|
| 2 | why should [pron] [verb] this [noun] | 5 |
|
| 3 | why [vb mod] [pron] [verb] this [noun sg] | 5 |
|
| 4 | why [vb mod] [pron] [vb infin] this [noun] | 5 |
|
| 5 | why [vb mod] [pers pn] [verb] this [noun] | 5 |
|
