| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] contribution to [verb] | 24 |
|
| 2 | [verb] a [adj] contribution to [verb] | 24 |
|
| 3 | [verb] a major [noun] to [verb] | 10 |
|
| 4 | [verb] a major contribution [prep] [verb] | 8 |
|
| 5 | [verb] a major contribution [prep] [verb] | 8 |
|
| 6 | [verb] [art] major contribution to [verb] | 6 |
|
| 7 | [verb] a major contribution to [verb] | 6 |
|
| 8 | [verb] a major contribution to [verb] | 6 |
|
