| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but must [vb infin] | 97 |
|
| 2 | but must [verb] | 97 |
|
| 3 | but must have | 24 |
|
| 4 | but must have | 24 |
|
| 5 | but must give | 5 |
|
| 6 | but must give | 5 |
|
