| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] [verb] [noun] | 1042 |
|
| 2 | [Wh det] [modal v] [adv] [verb] [noun] | 274 |
|
| 3 | [Wh det] [vb mod] [adv] [verb] [noun] | 274 |
|
| 4 | [Wh det] could [adv] [verb] [noun] | 22 |
|
