| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] been [vb pp] | 1857 |
|
| 2 | [vb past] been [vb pp] [adj] | 1010 |
|
| 3 | which [vb past] [vb pp] [adj] | 439 |
|
| 4 | which [vb past] been [adj] | 172 |
|
