| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] known that [pron] | 19 |
|
| 2 | it is [adv] known [that] [pron] | 19 |
|
| 3 | it is [adv] known that [pron] | 19 |
|
| 4 | it is [adv] known [conj] [pers pn] | 13 |
|
| 5 | it is well known [conj] [pron] | 13 |
|
| 6 | it is [adv] known [conj] it | 5 |
|
| 7 | it is [adv] known [conj] it | 5 |
|
