| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but you must not [vb infin] [adv] | 5 |
|
| 2 | but you must [adv] [vb infin] [adv] | 5 |
|
| 3 | but you must [not/n't] [vb infin] [adv] | 5 |
|
