| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [to-vb] at | 23 |
|
| 2 | which [to-vb] at | 12 |
|
| 3 | [Wh det] to look at | 8 |
|
| 4 | [Wh det] to do at | 7 |
|
