| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have not been [vb pp] by | 31 |
|
| 2 | which have not been [verb] by | 30 |
|
| 3 | [Wh det] have not been [verb] by | 28 |
|
| 4 | [Wh det] had not been [verb] by | 16 |
|
| 5 | [Wh det] has not been [verb] by | 11 |
|
