| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] whether [to-vb] | 254 |
|
| 2 | [prep] whether [to-vb] | 254 |
|
| 3 | to [conj] [to-vb] | 69 |
|
| 4 | to whether [verb] | 47 |
|
| 5 | to [subord] [to-vb] | 47 |
|
| 6 | to whether [to-vb] | 45 |
|
| 7 | to whether [to-vb] | 45 |
|
