| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] 50 per | 367 |
|
| 2 | [prep] [art] 50 | 160 |
|
| 3 | [art] 50 per | 151 |
|
| 4 | [prep] [art] per | 43 |
|
