| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [det] per cent of | 6 |
|
| 2 | a [det] per [no cls] of | 6 |
|
| 3 | a [det] per [unc] of | 6 |
|
| 4 | a few per [unc] of | 6 |
|
| 5 | a [det] per cent of | 6 |
|
