| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] do [vb infin] | 1870 |
|
| 2 | [Wh adv] do [vb infin] | 71 |
|
| 3 | why do [verb] | 31 |
|
| 4 | why do [vb infin] | 26 |
|
| 5 | why [verb] [vb infin] | 26 |
|
