| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] how [verb] [art] | 473 |
|
| 2 | [prep] [adv] do [art] | 63 |
|
| 3 | [prep] [Wh adv] do [art] | 12 |
|
| 4 | [prep] how do [art] | 5 |
|
