| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | vote [prep] whether [to-vb] | 7 |
|
| 2 | vote on whether [verb] | 7 |
|
| 3 | vote [prep] whether [verb] | 7 |
|
| 4 | vote on whether [verb] | 7 |
|
