| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] they [modal v] [verb] it | 137 |
|
| 2 | [verb] whether they [modal v] [verb] | 100 |
|
| 3 | whether they [modal v] [verb] it | 11 |
|
| 4 | [verb] whether they [verb] it | 9 |
|
