| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] do [art] | 3784 |
|
| 2 | [Wh adv] do [art] | 1083 |
|
| 3 | why [verb] [art] | 512 |
|
| 4 | why do [art] | 290 |
|
