| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] had been [verb] | 19757 |
|
| 2 | [noun] which had [verb] | 2428 |
|
| 3 | which had been [verb] | 2021 |
|
| 4 | [noun] which had been | 1475 |
|
