| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] to have been [verb] | 918 |
|
| 2 | [vb pp] to have [verb] [adj] | 364 |
|
| 3 | [vb pp] to have been [adj] | 184 |
|
| 4 | to have been [verb] [adj] | 93 |
|
