| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] now known that | 23 |
|
| 2 | it [is] now known that | 23 |
|
| 3 | it [is] now known [that] | 23 |
|
| 4 | it is now known [conj] | 20 |
|
