| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] to | 2038 |
|
| 2 | has since been [vb pp] | 150 |
|
| 3 | has since [vb pp] to | 24 |
|
| 4 | since been [vb pp] to | 20 |
|
