| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] why do [adv] | 283 |
|
| 2 | why [adv] do [adv] | 17 |
|
| 3 | why why do [adv] | 6 |
|
| 4 | why [Wh adv] do [adv] | 6 |
|
| 5 | why why [verb] [adv] | 6 |
|
