| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't know how [pron] | 471 |
|
| 2 | n't know [adv] i | 306 |
|
| 3 | n't [verb] how i | 129 |
|
| 4 | [adv] know how i | 100 |
|
| 5 | [not/n't] know how i | 85 |
|
| 6 | not know how i | 85 |
|
