| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [prep] a [noun sg] | 1408 |
|
| 2 | [prep] [num] a [noun sg] | 610 |
|
| 3 | but [prep] [num] [noun sg] | 127 |
|
| 4 | but [prep] [num] a | 21 |
|
