| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] but a [adj] [noun sg] | 77 |
|
| 2 | [am/are] [conj] a [adj] [noun sg] | 20 |
|
| 3 | [am/are] but a [adj] [noun] | 10 |
|
| 4 | [am/are] but [art] [adj] [noun sg] | 10 |
|
