| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [conj] it | 4731 |
|
| 2 | [verb] whether it | 971 |
|
| 3 | [vb past] [subord] it | 696 |
|
| 4 | [vb past] whether [pron] | 419 |
|
| 5 | [vb past] whether it | 77 |
|
