| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun] | 6833 |
|
| 2 | on [prep] a [noun] | 1263 |
|
| 3 | on [prep] [det] [noun] | 783 |
|
| 4 | on [prep] a [det] | 54 |
|
| 5 | on a [det] [noun] | 6 |
|
