| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't know [pron] [verb] | 1250 |
|
| 2 | [adv] know [Wh det] [verb] | 1110 |
|
| 3 | [not/n't] know [Wh det] [verb] | 932 |
|
| 4 | not know [Wh det] [verb] | 932 |
|
| 5 | n't [verb] [Wh det] [verb] | 877 |
|
