| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [adv] a | 1592 |
|
| 2 | but [adv] a | 1322 |
|
| 3 | [conj] about a | 106 |
|
| 4 | [coord] about a | 38 |
|
| 5 | but about a | 9 |
|
| 6 | but about [art] | 9 |
|
| 7 | but about a | 9 |
|
