| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] known that | 149 |
|
| 2 | is [adv] that [noun pl] | 64 |
|
| 3 | [adv] known that [noun pl] | 25 |
|
| 4 | is known that [noun pl] | 11 |
|
