| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know [prep] | 721 |
|
| 2 | [verb] n't know this | 55 |
|
| 3 | n't know [prep] this | 24 |
|
| 4 | [verb] n't [prep] this | 8 |
|
