| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [n mass] which had been | 5 |
|
| 2 | [prep] [n mass] which had been | 5 |
|
| 3 | [n mass] [noun] which had been | 5 |
|
| 4 | [n mass] which had been [verb] | 15 |
|
| 5 | [n mass] which had been [vb pp] | 14 |
|
