| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be proving to be | 75 |
|
| 2 | is proving to be | 39 |
|
| 3 | was proving to be | 19 |
|
| 4 | are proving to be | 7 |
|
| 5 | 's proving to be | 5 |
|
| 6 | were proving to be | 5 |
|
