| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] over 20 per | 6 |
|
| 2 | [prep] over 20 per [unc] | 12 |
|
| 3 | [prep] over 20 per cent | 12 |
|
| 4 | [prep] over 20 per [no cls] | 12 |
|
| 5 | [prep] over 20 per cent | 12 |
|
