| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] an [noun] [prep] | 1791 |
|
| 2 | on an [noun] [prep] | 628 |
|
| 3 | [was/were] on [noun] [prep] | 438 |
|
| 4 | [was/were] on an [noun] | 29 |
|
