| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been prove to be | 12 |
|
| 2 | [noun sg] have been prove to be | 6 |
|
| 3 | [noun pl] have been prove to be | 6 |
|
| 4 | [pron] have been prove to be | 6 |
|
| 5 | have been prove to be [adj] | 7 |
|
| 6 | have been prove to be [adj] | 7 |
|
