| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [pers pn] [vb past] [verb] this [noun sg] | 10 |
|
| 2 | why [pers pn] [vb past] [verb] this [noun] | 10 |
|
| 3 | why [pers pn] [vb past] [to-vb] this [noun] | 6 |
|
