| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] can be [verb] to | 173 |
|
| 2 | can be [verb] back to | 84 |
|
| 3 | [Wh det] can be [verb] back | 14 |
|
| 4 | [Wh det] be [verb] back to | 6 |
|
