| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] known | 264 |
|
| 2 | it be well known | 181 |
|
| 3 | it was [adv] known | 78 |
|
| 4 | it be now known | 41 |
|
| 5 | it be also known | 39 |
|
| 6 | it 's [adv] known | 21 |
|
| 7 | it be widely known | 13 |
|
| 8 | it be generally known | 12 |
|
| 9 | it be already known | 8 |
|
| 10 | it be best known | 6 |
|
| 11 | it be often known | 6 |
|
| 12 | it be better known | 5 |
|
| 13 | it be sometimes known | 5 |
|
