| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [adj] per | 2345 |
|
| 2 | of [num] per | 2342 |
|
| 3 | [prep] 20 per | 398 |
|
| 4 | of 20 [no cls] | 82 |
|
| 5 | of 20 [unc] | 82 |
|
| 6 | of 20 per | 71 |
|
| 7 | of 20 per | 71 |
|
