| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] [adv] | 757 |
|
| 2 | [Wh det] [modal v] [adv] [adv] | 180 |
|
| 3 | [Wh det] could [adv] [adv] | 70 |
|
| 4 | [Wh det] could [adv] [adv] | 39 |
|
