| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [vb mod] [noun] | 653 |
|
| 2 | [Wh adv] [modal v] [noun] | 653 |
|
| 3 | [adv] could [noun] | 148 |
|
| 4 | [Wh adv] could [noun] | 107 |
|
