| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [to-vb] whether [to-vb] [art] | 7 |
|
| 2 | [vb -s] to decide whether [to-vb] [art] | 6 |
|
| 3 | has [to-vb] whether [to-vb] [art] | 6 |
|
| 4 | [vb -s] [to-vb] whether [to-vb] the | 5 |
|
