| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] whether i [vb mod] [vb infin] | 20 |
|
| 2 | know whether i [vb mod] [vb infin] | 16 |
|
| 3 | [vb infin] whether i can [vb infin] | 6 |
|
