| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] per [unc] | 1883 |
|
| 2 | on [adj] per [unc] | 83 |
|
| 3 | on a [adj] [unc] | 54 |
|
| 4 | on a [adj] per | 25 |
|
| 5 | on a per [unc] | 16 |
|
