| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [adv] known that | 11 |
|
| 2 | [subord] it is [adv] known [that] | 11 |
|
| 3 | [subord] it is [adv] known that | 11 |
|
| 4 | [subord] it is well known [conj] | 8 |
|
