| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] it | 24849 |
|
| 2 | [pron] [vb past] whether | 424 |
|
| 3 | [vb past] whether it | 77 |
|
| 4 | [pron] whether it | 37 |
|
