| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [art] 20 per | 21 |
|
| 2 | [noun] [prep] [art] 20 per | 21 |
|
| 3 | [noun sg] [prep] [art] 20 per | 18 |
|
| 4 | [noun] [prep] the 20 per | 13 |
|
| 5 | [noun] of [art] 20 per | 9 |
|
| 6 | [noun] of [art] 20 per | 9 |
|
| 7 | [noun] [prep] a 20 per | 8 |
|
