| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had been [verb] | 2021 |
|
| 2 | [adj] had been [verb] | 1014 |
|
| 3 | [adj] which had [verb] | 80 |
|
| 4 | [adj] which had been | 49 |
|
