| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] a [noun] | 20047 |
|
| 2 | but [modal v] [vb infin] [noun] | 144 |
|
| 3 | but [modal v] [vb infin] a | 96 |
|
| 4 | but [modal v] a [noun] | 9 |
|
