| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] known that | 147 |
|
| 2 | is [adv] that [det] | 43 |
|
| 3 | [adv] known that [det] | 23 |
|
| 4 | is known that [det] | 17 |
|
