| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had been [verb] | 2021 |
|
| 2 | had been [verb] [adj] | 1388 |
|
| 3 | which had [verb] [adj] | 445 |
|
| 4 | which had been [adj] | 172 |
|
