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