| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] per cent | 500 |
|
| 2 | by [art] [adj] per cent | 40 |
|
| 3 | by [art] [adj] per cent | 40 |
|
| 4 | by a [adj] per cent | 32 |
|
| 5 | by a [adj] per [unc] | 30 |
|
| 6 | by a [adj] [unc] cent | 30 |
|
