| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how could [pron] [verb] | 886 |
|
| 2 | how [modal v] i [verb] | 763 |
|
| 3 | how [vb mod] i [verb] | 763 |
|
| 4 | [adv] could i [verb] | 217 |
|
| 5 | how could i [verb] | 161 |
|
