| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] known [that] | 189 |
|
| 2 | it [be] [adv] [that] [noun pl] | 29 |
|
| 3 | [be] [adv] known [that] [noun pl] | 20 |
|
| 4 | it [be] known [that] [noun pl] | 15 |
|
