| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] do [vb infin] | 1870 |
|
| 2 | [Wh adv] do [vb infin] | 71 |
|
| 3 | how [verb] [vb infin] | 42 |
|
| 4 | how do [verb] | 33 |
|
| 5 | how do [vb infin] | 31 |
|
