| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] [pron] [verb] [verb] | 99 |
|
| 2 | [vb past] why [pron] [verb] [verb] | 72 |
|
| 3 | [to-vb] why [pron] [verb] [verb] | 53 |
|
| 4 | [vb past] [to-vb] why [pron] [verb] | 30 |
|
