| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] contribution to [v-ing] | 24 |
|
| 2 | [verb] a [adj] contribution to [verb] | 24 |
|
| 3 | make a [adj] contribution to [verb] | 24 |
|
| 4 | [verb] a [adj] contribution to [verb] | 21 |
|
| 5 | [vb infin] a [adj] contribution to [verb] | 12 |
|
| 6 | make a [adj] contribution to [verb] | 12 |
|
| 7 | [verb] a major contribution to [verb] | 6 |
|
| 8 | [vb pp] a [adj] contribution to [verb] | 5 |
|
| 9 | made a [adj] contribution to [verb] | 5 |
|
