| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been proved to | 16 |
|
| 2 | [verb] been proved to | 16 |
|
| 3 | has been proved to | 7 |
|
| 4 | [vb -s] been proved to | 7 |
|
| 5 | [vb base] been proved to | 6 |
|
| 6 | have been proved to | 6 |
|
| 7 | been proved to [be] | 15 |
|
| 8 | been proved to be | 15 |
|
| 9 | been proved to [be] | 15 |
|
| 10 | been proved to be | 15 |
|
