| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] [verb] | 5175 |
|
| 2 | [prep] whether [verb] | 276 |
|
| 3 | [vb infin] whether [verb] | 206 |
|
| 4 | [vb infin] [prep] whether | 132 |
|
