| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] which had been | 49 |
|
| 2 | [det] which had been | 26 |
|
| 3 | that which had been | 19 |
|
| 4 | that which had been | 19 |
|
| 5 | [num] which had been | 19 |
|
| 6 | those which had been | 5 |
|
| 7 | those which had been | 5 |
|
