| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] on [noun] which | 8 |
|
| 2 | [was/were] [vb pp] on [noun] [Wh det] | 8 |
|
| 3 | [was/were] [vb pp] on [noun pl] [Wh det] | 7 |
|
| 4 | was [vb pp] on [noun] [Wh det] | 6 |
|
