| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | you could have [verb] | 336 |
|
| 2 | [Wh det] you could [verb] | 133 |
|
| 3 | [Wh det] could have [verb] | 122 |
|
| 4 | [Wh det] you could have | 10 |
|
