| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it proved [prep] [be] one | 5 |
|
| 2 | it proved to [be] one | 5 |
|
| 3 | it proved [prep] be one | 5 |
|
| 4 | it proved [prep] be one | 5 |
|
