| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been [vb pp] by a | 38 |
|
| 2 | [Wh det] have been [verb] by a | 38 |
|
| 3 | which have been [verb] by a | 37 |
|
| 4 | [Wh det] had been [verb] by a | 20 |
|
| 5 | [Wh det] has been [verb] by a | 12 |
|
| 6 | [Wh det] have been [verb] by a | 6 |
|
