| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [be] proved to be | 7 |
|
| 2 | [vb -s] [been] proved to [be] | 7 |
|
| 3 | has [be] proved to [be] | 7 |
|
| 4 | [vb -s] [be] proved to [be] | 7 |
|
| 5 | [vb -s] [be] proved to be | 7 |
|
| 6 | [vb -s] be proved to [be] | 7 |
|
| 7 | [vb -s] been proved to [be] | 7 |
|
