| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should prove [prep] be | 15 |
|
| 2 | should prove [prep] [be] | 15 |
|
| 3 | should prove [prep] be | 15 |
|
| 4 | should prove [prep] [be] | 15 |
|
| 5 | should prove to [be] | 15 |
|
| 6 | should prove to [be] | 15 |
|
