| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is know to have be [verb] [prep] | 12 |
|
| 2 | is known have be [verb] [prep] | 12 |
|
| 3 | is know have be [verb] [prep] | 12 |
|
| 4 | is know have been [verb] [prep] | 12 |
|
| 5 | is know have be [vb pp] [prep] | 11 |
|
