| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is known that [pron] | 26 |
|
| 2 | it [is] known that [pers pn] | 15 |
|
| 3 | it [is] known that there | 12 |
|
| 4 | it [is] known that there | 12 |
|
| 5 | it [is] known that [ex0] | 12 |
|
| 6 | it [is] known that he | 7 |
|
| 7 | it [is] known that he | 7 |
|
