| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have made a [adj] contribution | 58 |
|
| 2 | [verb] made a [adj] contribution | 58 |
|
| 3 | has made a [adj] contribution | 28 |
|
| 4 | [vb -s] made a [adj] contribution | 28 |
|
| 5 | [vb base] made a [adj] contribution | 18 |
|
| 6 | have made a [adj] contribution | 18 |
|
| 7 | [verb] made a significant contribution | 15 |
|
| 8 | [verb] made a major contribution | 14 |
|
| 9 | had made a [adj] contribution | 6 |
|
| 10 | [vb past] made a [adj] contribution | 6 |
|
