| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | you must [not/n't] [verb] | 404 |
|
| 2 | but you must [verb] | 230 |
|
| 3 | but you must [not/n't] | 38 |
|
| 4 | but must [not/n't] [verb] | 12 |
|
