| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] whether [to-vb] | 254 |
|
| 2 | about [conj] [to-vb] | 45 |
|
| 3 | about whether [verb] | 42 |
|
| 4 | about whether [to-vb] | 41 |
|
| 5 | about [subord] [to-vb] | 41 |
|
