| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] per cent | 500 |
|
| 2 | be a [adj] per cent | 135 |
|
| 3 | be [prep] [adj] per cent | 55 |
|
| 4 | be [prep] a [adj] per | 7 |
|
