| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to be | 91055 |
|
| 2 | prove to be | 1919 |
|
| 3 | prove [prep] be | 1919 |
|
| 4 | prove to [be] | 1919 |
|
| 5 | prove to [be] | 1919 |
|
