| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh adv] [pron] could [verb] | 76 |
|
| 2 | [prep] [Wh adv] [pron] [verb] [noun sg] | 67 |
|
| 3 | [Wh adv] [pron] could [verb] [noun sg] | 30 |
|
| 4 | [prep] [pron] could [verb] [noun sg] | 17 |
|
