| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [verb] [art] | 24547 |
|
| 2 | [Wh det] [vb past] [verb] [art] | 1252 |
|
| 3 | what [verb] [verb] [art] | 193 |
|
| 4 | what [vb past] [verb] [art] | 71 |
|
