| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know | 20662 |
|
| 2 | do n't know | 20512 |
|
| 3 | does n't [verb] | 12936 |
|
| 4 | does [adv] know | 831 |
|
| 5 | does [not/n't] know | 830 |
|
| 6 | does not know | 829 |
|
| 7 | [vb -s] n't know | 601 |
|
