| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [verb] a | 1344 |
|
| 2 | [conj] keep a | 243 |
|
| 3 | [coord] keep a | 210 |
|
| 4 | but keep [art] | 63 |
|
| 5 | but keep a | 17 |
|
