| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] on | 9595 |
|
| 2 | [was/were] [vb pp] [noun] | 4324 |
|
| 3 | [vb pp] [noun] on | 1959 |
|
| 4 | [was/were] [noun] on | 397 |
|
