| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who did [pron] [vb infin] to | 13 |
|
| 2 | [Wh pn] did [pers pn] [vb infin] to | 13 |
|
| 3 | [Wh pn] did you [vb infin] to | 11 |
|
| 4 | [Wh pn] did you [vb infin] to | 11 |
|
