| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | make a [adj] contribution | 448 |
|
| 2 | make a [adj] contribution | 436 |
|
| 3 | make a useful [noun] | 39 |
|
| 4 | make a useful [noun sg] | 39 |
|
| 5 | make [art] useful contribution | 15 |
|
| 6 | make a useful contribution | 15 |
|
| 7 | make a useful contribution | 15 |
|
| 8 | make a useful contribution | 15 |
|
| 9 | [verb] a useful contribution | 15 |
|
| 10 | make [art] useful contribution | 15 |
|
