| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] by a [adj] | 609 |
|
| 2 | to have been [vb pp] by a | 70 |
|
| 3 | to have been [vb pp] by [adj] | 41 |
|
| 4 | to have been [vb pp] a [adj] | 7 |
|
