| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] known that | 157 |
|
| 2 | it is [adv] known that | 149 |
|
| 3 | it [is] well known that | 114 |
|
| 4 | it [is] well known that | 114 |
|
| 5 | it [is] now known that | 23 |
|
| 6 | it [is] now known that | 23 |
|
| 7 | it 's [adv] known that | 11 |
|
| 8 | it [is] also known that | 11 |
|
| 9 | it [is] also known that | 11 |
|
