| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [num] per | 533 |
|
| 2 | of [art] [num] per | 176 |
|
| 3 | of a [num] [unc] | 95 |
|
| 4 | of a [num] [no cls] | 86 |
|
| 5 | of a [adj] per | 81 |
|
| 6 | of a [num] per | 80 |
|
