| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it [verb] | 4322 |
|
| 2 | whether it [verb] | 538 |
|
| 3 | [vb past] whether it | 77 |
|
| 4 | [vb past] whether [verb] | 60 |
|
