| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] contribution to | 411 |
|
| 2 | [verb] [verb] a [adj] contribution | 138 |
|
| 3 | [verb] [verb] [adj] contribution to | 24 |
|
| 4 | [verb] [verb] a contribution to | 23 |
|
| 5 | [verb] [verb] a [adj] to | 11 |
|
