| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [adv] [pron] [adv] | 151 |
|
| 2 | why [verb] [adv] they [adv] | 19 |
|
| 3 | why do [adv] they [adv] | 17 |
|
| 4 | why [vb base] [adv] they [adv] | 11 |
|
| 5 | [adv] do [adv] they [adv] | 11 |
|
