| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] a major contribution to | 13 |
|
| 2 | [noun] [verb] a major contribution to | 13 |
|
| 3 | [noun] make a major contribution to | 12 |
|
| 4 | [noun pl] [verb] a major contribution to | 5 |
|
