| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] [Wh det] | 9769 |
|
| 2 | [prep] [Wh det] could | 313 |
|
| 3 | [verb] [Wh det] could | 239 |
|
| 4 | [verb] [prep] could | 26 |
|
