| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] a [noun sg] | 12423 |
|
| 2 | [prep] whether a [noun sg] | 154 |
|
| 3 | whether [verb] a [noun sg] | 99 |
|
| 4 | [prep] whether [verb] [noun sg] | 31 |
|
| 5 | [prep] whether [verb] a | 21 |
|
