| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [vb infin] whether [to-vb] | 6 |
|
| 2 | [pron] must decide whether [to-vb] | 5 |
|
| 3 | [pron] must decide whether [to-vb] | 5 |
|
