| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to have been [vb pp] by [det] | 12 |
|
| 2 | to have been [vb pp] by [det] [noun] | 13 |
|
| 3 | to have been [vb pp] by [det] [noun sg] | 10 |
|
