| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't know [conj] mr | 6 |
|
| 2 | [not/n't] know whether mr | 5 |
|
| 3 | [not/n't] know [subord] mr | 5 |
|
| 4 | [not/n't] know whether mr | 5 |
|
| 5 | [not/n't] know [conj] mr | 5 |
|
