| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's [adv] known that | 11 |
|
| 2 | it 's [adv] known [that] | 11 |
|
| 3 | it 's [adv] known that | 11 |
|
| 4 | it 's [adv] known [conj] | 10 |
|
| 5 | it 's [not/n't] known [conj] | 7 |
|
| 6 | it 's not known [conj] | 7 |
|
| 7 | it 's not known [conj] | 7 |
|
| 8 | it 's [adv] known [subord] | 6 |
|
| 9 | it 's [adv] known if | 5 |
|
| 10 | it 's well known [conj] | 5 |
|
| 11 | it 's well known [conj] | 5 |
|
| 12 | it 's [adv] known if | 5 |
|
