| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [modal v] not know how [verb] | 9 |
|
| 2 | i [modal v] [adv] know how [verb] | 9 |
|
| 3 | i [modal v] [not/n't] know how [verb] | 9 |
|
| 4 | i [modal v] n't know how [verb] | 8 |
|
| 5 | i [modal v] know how [verb] [pron] | 6 |
|
| 6 | i [modal v] know how [verb] [pers pn] | 5 |
|
