| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] a [adj] contribution to | 68 |
|
| 2 | [verb] [vb pp] a [adj] contribution to | 68 |
|
| 3 | [verb] [vb pp] a major [noun] to | 22 |
|
| 4 | [verb] [verb] a major contribution to | 13 |
|
| 5 | [verb] [vb pp] [art] major contribution to | 11 |
|
| 6 | [verb] [vb pp] a major contribution [prep] | 11 |
|
| 7 | [verb] [vb pp] a major contribution [prep] | 11 |
|
| 8 | [verb] [vb pp] a major contribution to | 11 |
|
| 9 | [verb] [vb pp] a major contribution to | 11 |
|
