| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] be known to be | 20 |
|
| 2 | [adj] be known to [be] | 20 |
|
| 3 | [det] be known to [be] | 12 |
|
| 4 | [adj] are known to [be] | 9 |
|
| 5 | [adj] is known to [be] | 6 |
|
| 6 | [num] be known to [be] | 5 |
|
