| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [adv] [verb] | 4871 |
|
| 2 | whether they [modal v] [verb] | 251 |
|
| 3 | whether they [adv] [verb] | 65 |
|
| 4 | whether they [modal v] [adv] | 34 |
|
