| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but not [prep] an [noun] | 9 |
|
| 2 | but not [prep] an [adj] | 9 |
|
| 3 | but not [prep] an [adj] | 9 |
|
| 4 | but not [prep] an [noun sg] | 8 |
|
