| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [verb] [verb] | 8130 |
|
| 2 | may [verb] [vb pp] | 4269 |
|
| 3 | [modal v] [verb] contributed | 104 |
|
| 4 | [vb mod] [verb] contributed | 104 |
|
| 5 | may [verb] contribute | 71 |
|
| 6 | may [verb] contributed | 70 |
|
