| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] contribution [prep] their | 13 |
|
| 2 | [verb] a [adj] contribution [prep] their | 13 |
|
| 3 | make a [adj] contribution [prep] their | 12 |
|
| 4 | [verb] a [adj] contribution to their | 9 |
|
| 5 | [verb] a [adj] contribution to their | 9 |
|
| 6 | [verb] a [adj] contribution [prep] their | 9 |
|
