| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] proved to be | 76 |
|
| 2 | [Wh det] proved to [be] | 76 |
|
| 3 | which proved to [be] | 50 |
|
| 4 | what proved to [be] | 26 |
|
