| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [pron] could [vb infin] [noun] [adv] | 19 |
|
| 2 | [Wh adv] [pron] [modal v] [vb infin] [noun] [adv] | 17 |
|
| 3 | [Wh adv] [pron] could [verb] [noun] [adv] | 6 |
|
