| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [prep] a [noun sg] | 8818 |
|
| 2 | whether [to-vb] a [noun sg] | 110 |
|
| 3 | whether [prep] a [noun sg] | 81 |
|
| 4 | whether [to-vb] [prep] [noun sg] | 33 |
|
| 5 | whether [to-vb] [prep] a | 25 |
|
