| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [det] [noun] must [adv] be | 5 |
|
| 2 | but [det] [noun] must be [vb pp] | 14 |
|
| 3 | but [det] [noun] must be [verb] | 14 |
|
| 4 | but [det] [noun] must be [adj] | 6 |
|
| 5 | but [det] [noun] must be [adj] | 5 |
|
