| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is known that [adj] | 32 |
|
| 2 | it is known that [noun sg] | 14 |
|
| 3 | it is that [adj] [noun sg] | 8 |
|
| 4 | is known that [adj] [noun sg] | 8 |
|
