| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it is known [conj] | 21 |
|
| 2 | [coord] it is known [that] | 21 |
|
| 3 | [coord] it is known that | 21 |
|
| 4 | [coord] it is known that | 21 |
|
| 5 | but it is known [conj] | 11 |
|
| 6 | and it is known [conj] | 9 |
|
