| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is not [adv] | 699 |
|
| 2 | [conj] it is [adv] known | 112 |
|
| 3 | [conj] it is not known | 41 |
|
| 4 | it is not [adv] known | 37 |
|
