| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] to be | 621 |
|
| 2 | have been [vb pp] to be | 612 |
|
| 3 | have been know to be | 9 |
|
| 4 | have been known to be | 9 |
|
| 5 | have [be] known to be | 9 |
|
| 6 | have been known to [be] | 9 |
|
| 7 | have been known to [be] | 9 |
|
| 8 | [verb] been known to be | 9 |
|
| 9 | have been known to be | 9 |
|
| 10 | have be known to be | 9 |
|
| 11 | have [been] known to be | 9 |
|
| 12 | have been known [prep] be | 9 |
|
| 13 | have been known [prep] be | 9 |
|
