| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] whether [pron] [modal v] [verb] | 638 |
|
| 2 | [vb past] [verb] [pron] [modal v] [verb] | 474 |
|
| 3 | [vb past] whether [pron] [modal v] [verb] | 96 |
|
| 4 | [vb past] [verb] whether [pron] [modal v] | 35 |
|
| 5 | [vb past] [verb] whether [pron] [verb] | 23 |
|
