| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know [prep] | 721 |
|
| 2 | [verb] n't know [noun sg] | 83 |
|
| 3 | [verb] n't [prep] [noun sg] | 43 |
|
| 4 | n't know [prep] [noun sg] | 29 |
|
