| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] to | 7884 |
|
| 2 | [been] [vb pp] to | 7229 |
|
| 3 | [be] proved to | 64 |
|
| 4 | [been] proved [prep] | 62 |
|
| 5 | [been] proved [prep] | 62 |
|
| 6 | [been] prove to | 26 |
|
| 7 | [been] proved to | 19 |
|
