| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb -s] been [vb pp] [to-vb] [adj] | 5 |
|
| 2 | which [vb -s] been [vb pp] [verb] [adj] | 5 |
|
| 3 | which has been [vb pp] [verb] [adj] | 5 |
|
