| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | whether [pron] [verb] [coord] [adv] | 108 |
|
| 2 | know whether [pron] [verb] [adv] | 36 |
|
| 3 | know [pron] [verb] [coord] [adv] | 25 |
|
| 4 | know whether [pron] [verb] [coord] | 19 |
|
