| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a significant [noun] | 1296 |
|
| 2 | [verb] a [adj] contribution | 533 |
|
| 3 | [verb] a [adj] contribution | 512 |
|
| 4 | [verb] [art] significant contribution | 101 |
|
| 5 | [verb] [art] significant contribution | 101 |
|
| 6 | [verb] a significant contribution | 96 |
|
| 7 | [verb] a significant contribution | 96 |
|
