| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] 50 per [unc] | 321 |
|
| 2 | under 50 per [unc] | 8 |
|
| 3 | [adv] under 50 per | 8 |
|
| 4 | [adv] under 50 [unc] | 8 |
|
