| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] been [vb pp] [verb] [det] | 10 |
|
| 2 | which have been [vb pp] [verb] [det] | 10 |
|
| 3 | which [verb] been [vb pp] [to-vb] [det] | 9 |
|
| 4 | which [verb] been [vb pp] [verb] this | 5 |
|
