| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [be] known to be [adj] | 15 |
|
| 2 | which be known to [be] [adj] | 15 |
|
| 3 | which are known to [be] [adj] | 7 |
|
| 4 | which [am/are] known to [be] [adj] | 7 |
|
| 5 | which [is] known to [be] [adj] | 6 |
|
| 6 | which is known to [be] [adj] | 6 |
|
