| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't [verb] | 199946 |
|
| 2 | n't [vb infin] | 177329 |
|
| 3 | [adv] know | 26542 |
|
| 4 | [not/n't] know | 24269 |
|
| 5 | not know | 24249 |
|
| 6 | n't know | 21335 |
|
