| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] 50 per cent | 126 |
|
| 2 | [prep] a 50 per cent | 23 |
|
| 3 | [noun] [prep] a 50 per | 7 |
|
| 4 | [noun] [prep] a per cent | 5 |
|
