| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which was [vb pp] at [adj] [noun] | 9 |
|
| 2 | which [was/were] [vb pp] at [adj] [noun sg] | 8 |
|
| 3 | which [was/were] [vb pp] at [adj] [noun pl] | 6 |
|
| 4 | which were [vb pp] at [adj] [noun] | 6 |
|
