| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [vb pp] by [noun sg] | 21 |
|
| 2 | who has been [vb pp] by [noun sg] | 7 |
|
| 3 | who had been [vb pp] by [noun sg] | 7 |
|
| 4 | who have been [vb pp] by [noun sg] | 6 |
|
