| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pron] must [verb] | 911 |
|
| 2 | but [pron] must [vb infin] | 910 |
|
| 3 | but [pron] [modal v] do | 285 |
|
| 4 | [conj] [pron] must do | 91 |
|
| 5 | but [pron] must do | 20 |
|
