| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [pron] [Wh det] | 406 |
|
| 2 | [pron] [Wh det] could | 118 |
|
| 3 | to [pron] could | 83 |
|
| 4 | to [Wh det] could | 31 |
|
