| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [verb] [pron] [vb infin] | 5014 |
|
| 2 | how do [pron] [vb infin] | 4961 |
|
| 3 | [adv] did [pron] [vb infin] | 4519 |
|
| 4 | how [vb past] [pron] [vb infin] | 1532 |
|
| 5 | how did [pron] [verb] | 1506 |
|
