| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] to be | 279 |
|
| 2 | [verb] been prove to be | 19 |
|
| 3 | have been prove to be | 19 |
|
| 4 | has been prove to [be] | 10 |
|
| 5 | [vb -s] been prove to be | 10 |
|
| 6 | has been prove to be | 10 |
|
| 7 | has been prove [prep] be | 10 |
|
| 8 | has [be] prove to be | 10 |
|
| 9 | has been prove to [be] | 10 |
|
| 10 | has be prove to be | 10 |
|
| 11 | has been prove [prep] be | 10 |
|
| 12 | has been prove to be | 10 |
|
| 13 | has [been] prove to be | 10 |
|
