| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] by [noun] | 1477 |
|
| 2 | been [vb pp] by a [noun] | 812 |
|
| 3 | has been [vb pp] by a | 357 |
|
| 4 | has been [vb pp] a [noun] | 157 |
|
| 5 | has [vb pp] by a [noun] | 8 |
|
