| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] to contribute to the | 33 |
|
| 2 | [vb pp] to contribute to a | 11 |
|
| 3 | expected to contribute to [art] | 10 |
|
| 4 | asked to contribute to [art] | 5 |
|
