| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [prep] [noun] [pron] | 2298 |
|
| 2 | on [art] [noun] [prep] [noun] [pron] | 611 |
|
| 3 | on a [noun] [prep] [noun] [pron] | 120 |
|
