| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [pron] | 3961 |
|
| 2 | why do [pron] | 3169 |
|
| 3 | why [vb base] [pron] | 1844 |
|
| 4 | [adv] d' [pron] | 272 |
|
