| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on an [noun] [noun] | 632 |
|
| 2 | [was/were] an [noun] [noun] | 387 |
|
| 3 | [was/were] on [noun] [noun] | 188 |
|
| 4 | [was/were] on an [noun] | 29 |
|
