| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adv] known that | 10 |
|
| 2 | it is [adv] [adv] known [that] | 10 |
|
| 3 | it is [adv] [adv] known that | 10 |
|
| 4 | it is [adv] [adv] known [conj] | 10 |
|
| 5 | it is [adv] well known [conj] | 9 |
|
| 6 | it is [adv] well known [conj] | 9 |
|
| 7 | it is also [adv] known [conj] | 5 |
|
