| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [noun] [pron] | 2504 |
|
| 2 | [prep] a [noun] [noun] [pron] | 2504 |
|
| 3 | on [art] [noun] [noun] [pron] | 702 |
|
| 4 | on a [noun] [noun] [pron] | 184 |
|
