| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] known that [art] | 38 |
|
| 2 | it [is] now known that | 23 |
|
| 3 | it [is] now that [art] | 6 |
|
| 4 | [is] now known that [art] | 5 |
|
