| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [to-vb] [adv] whether | 13 |
|
| 2 | [adv] [to-vb] [adv prt] whether | 12 |
|
| 3 | [adv] [to-vb] out whether | 11 |
|
| 4 | [adv] [to-vb] out whether | 11 |
|
| 5 | [adv] to find [adv] whether | 8 |
|
