| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is known that | 148 |
|
| 2 | is known [that] | 148 |
|
| 3 | is known that | 148 |
|
| 4 | is known [coord] | 39 |
|
| 5 | is known and | 31 |
|
| 6 | is known and | 31 |
|
| 7 | is known [subord] | 5 |
|
