| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] [conj] it | 178 |
|
| 2 | [verb] [to-vb] whether it | 85 |
|
| 3 | [vb past] [to-vb] whether [pron] | 82 |
|
| 4 | [vb past] [verb] whether it | 13 |
|
