| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] [noun sg] | 28078 |
|
| 2 | [prep] whether [verb] | 276 |
|
| 3 | [prep] whether [noun sg] | 231 |
|
| 4 | whether [verb] [noun sg] | 132 |
|
