| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [to-vb] [prep] | 929 |
|
| 2 | what [to-vb] [prep] | 929 |
|
| 3 | [pron] [to-vb] at | 605 |
|
| 4 | what [verb] at | 185 |
|
| 5 | [Wh det] [to-vb] at | 36 |
|
| 6 | what [to-vb] at | 23 |
|
| 7 | what [to-vb] at | 23 |
|
