| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] known that | 157 |
|
| 2 | it is [adv] known [that] | 147 |
|
| 3 | it [is] well known [that] | 114 |
|
| 4 | it [is] now known [that] | 23 |
|
| 5 | it [is] also known [that] | 11 |
|
| 6 | it 's [adv] known [that] | 10 |
|
