| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know [pron] | 5982 |
|
| 2 | [verb] n't [verb] [Wh pn] | 550 |
|
| 3 | [verb] n't [vb infin] [Wh pn] | 543 |
|
| 4 | [verb] [adv] know [Wh pn] | 464 |
|
| 5 | [verb] [not/n't] know [Wh pn] | 463 |
|
| 6 | [verb] not know [Wh pn] | 463 |
|
| 7 | [verb] n't know [Wh pn] | 408 |
|
