| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] this [noun] [vb past] | 13 |
|
| 2 | [Wh pn] [verb] this [noun] [vb past] | 13 |
|
| 3 | [Wh pn] [verb] this [noun sg] [vb past] | 13 |
|
| 4 | [Wh pn] [vb past] this [noun] [vb past] | 12 |
|
