| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know | 24269 |
|
| 2 | n't know | 21335 |
|
| 3 | not know | 4612 |
|
| 4 | [not/n't] known | 1003 |
|
| 5 | [not/n't] knowing | 463 |
|
| 6 | [not/n't] to know | 151 |
|
| 7 | [not/n't] know | 56 |
|
| 8 | [not/n't] knows | 24 |
|
| 9 | nt know | 20 |
|
