| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] known [conj] | 149 |
|
| 2 | it is well known [conj] | 109 |
|
| 3 | is [adv] well known [conj] | 14 |
|
| 4 | it is [adv] well known | 13 |
|
