| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] make a [adj] contribution to | 21 |
|
| 2 | [vb base] [vb pp] a [adj] contribution to | 19 |
|
| 3 | [vb base] made a [adj] contribution to | 19 |
|
| 4 | have [verb] a [adj] contribution to | 19 |
|
| 5 | [vb base] [verb] a [adj] contribution to | 15 |
|
| 6 | [vb base] [verb] an [adj] contribution to | 6 |
|
