| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] that | 1225 |
|
| 2 | it [is] [adv] known | 447 |
|
| 3 | [is] [adv] known that | 160 |
|
| 4 | it [is] known that | 153 |
|
