| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] it [verb] | 75 |
|
| 2 | [prep] whether it [verb] | 62 |
|
| 3 | [vb infin] whether it [verb] | 49 |
|
| 4 | [vb infin] [prep] whether it | 9 |
|
| 5 | [vb infin] [prep] whether [verb] | 6 |
|
