| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how did [pron] | 1650 |
|
| 2 | how [verb] i | 422 |
|
| 3 | [adv] did i | 397 |
|
| 4 | how do i | 366 |
|
| 5 | [Wh adv] did i | 234 |
|
| 6 | how [vb past] i | 75 |
|
| 7 | how did i | 63 |
|
