| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] to be | 758 |
|
| 2 | [been] [vb pp] to be | 747 |
|
| 3 | [be] proved to be | 53 |
|
| 4 | [been] prove to be | 20 |
|
| 5 | [been] proved [prep] be | 15 |
|
| 6 | [been] proved to [be] | 15 |
|
| 7 | [been] proved to be | 15 |
|
| 8 | [been] proved to [be] | 15 |
|
| 9 | [been] proved [prep] be | 15 |
|
| 10 | [been] proved to be | 15 |
|
