| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | believed to have been [verb] | 100 |
|
| 2 | to have been [verb] [adj] | 93 |
|
| 3 | believed to have [verb] [adj] | 27 |
|
| 4 | believed to have been [adj] | 20 |
|
