| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [vb past] [verb] [prep] | 669 |
|
| 2 | [pron] [pron] [vb past] [verb] in | 427 |
|
| 3 | what [pron] [verb] [verb] in | 387 |
|
