| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which had been | 132 |
|
| 2 | [prep] [n mass] had been | 37 |
|
| 3 | [n mass] which had been | 20 |
|
| 4 | [prep] [n mass] which had | 10 |
|
