| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [verb] a major contribution to | 7 |
|
| 2 | [pers pn] make a major contribution to | 7 |
|
| 3 | [pers pn] [verb] a major contribution to | 7 |
|
| 4 | [pers pn] made a major contribution to | 5 |
|
| 5 | [pers pn] [vb past] a major contribution to | 5 |
|
