| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have been [verb] by | 2611 |
|
| 2 | which have been [verb] by | 711 |
|
| 3 | which [pron] have been [verb] | 644 |
|
| 4 | which [pron] have [verb] by | 25 |
|
