| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] per | 503 |
|
| 2 | [prep] a [adj] per | 503 |
|
| 3 | on a [adj] [unc] | 54 |
|
| 4 | on [art] [adj] per | 44 |
|
| 5 | on [art] [adj] per | 44 |
|
| 6 | on a [adj] per | 30 |
|
| 7 | on a [adj] per | 25 |
|
