| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] a [noun] | 33420 |
|
| 2 | on a [noun] | 24070 |
|
| 3 | [was/were] on [noun] | 1843 |
|
| 4 | [was/were] on a | 607 |
|
