| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has be [vb pp] to be | 280 |
|
| 2 | has been [vb pp] to be | 279 |
|
| 3 | has be shown to be | 100 |
|
| 4 | has be found to be | 54 |
|
| 5 | has be reported to be | 15 |
|
| 6 | has be held to be | 14 |
|
| 7 | has be designed to be | 11 |
|
| 8 | has be said to be | 8 |
|
| 9 | has be proved to be | 7 |
|
| 10 | has be assumed to be | 6 |
|
| 11 | has be known to be | 6 |
|
| 12 | has be seen to be | 5 |
|
| 13 | has be considered to be | 5 |
|
