| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how do [pron] [vb infin] [art] | 471 |
|
| 2 | do [pron] [vb infin] for [art] | 98 |
|
| 3 | how do [pron] [vb infin] for | 40 |
|
