| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] known that | 189 |
|
| 2 | [subord] it be [adv] known | 64 |
|
| 3 | [subord] it be known that | 56 |
|
| 4 | [subord] it be [adv] that | 45 |
|
