| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] [vb past] [art] | 130 |
|
| 2 | what [pron] [vb past] at [art] | 45 |
|
| 3 | [prep] [pron] [vb past] at [art] | 38 |
|
| 4 | [prep] what [pron] [vb past] at | 23 |
|
| 5 | [prep] what [vb past] at [art] | 9 |
|
