| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [pron] [pron] could | 90 |
|
| 2 | [adv] [pron] [Wh det] [modal v] | 29 |
|
| 3 | [adv] [pron] [Wh det] [vb mod] | 29 |
|
| 4 | [adv] [pron] [Wh det] could | 13 |
|
| 5 | [adv] [pron] [Wh det] could | 6 |
|
