| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know [Wh det] [verb] i [vb infin] | 5 |
|
| 2 | [not/n't] know [Wh det] [verb] i [vb infin] | 5 |
|
| 3 | n't know [Wh det] [verb] i [vb infin] | 5 |
|
| 4 | [adv] know [Wh det] [verb] i [vb infin] | 5 |
|
