| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [prep] whether | 59 |
|
| 2 | [to-vb] [adv] [prep] whether | 12 |
|
| 3 | think [adv] [prep] whether | 7 |
|
| 4 | to think [adv] [prep] [conj] | 6 |
|
