| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb base] [pron] | 31947 |
|
| 2 | [Wh adv] [vb base] [pron] | 6586 |
|
| 3 | why [verb] [pron] | 3961 |
|
| 4 | why [vb base] [pron] | 1844 |
|
