| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [det] | 340 |
|
| 2 | could you [verb] [det] | 148 |
|
| 3 | you have [verb] [det] | 57 |
|
| 4 | could you have [verb] | 31 |
|
