| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [verb] [pron] [verb] | 5392 |
|
| 2 | how do [pron] [verb] | 4997 |
|
| 3 | [adv] did [pron] [verb] | 4568 |
|
| 4 | [Wh adv] did [pron] [verb] | 3722 |
|
| 5 | how [vb past] [pron] [verb] | 1650 |
|
| 6 | how did [pron] [verb] | 1506 |
|
