| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [pron] [adv] | 271 |
|
| 2 | [adv] do they [adv] | 85 |
|
| 3 | [Wh adv] do they [adv] | 44 |
|
| 4 | why [verb] they [adv] | 44 |
|
| 5 | why do they [adv] | 33 |
|
