| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [noun] [noun sg] | 2715 |
|
| 2 | at a [noun sg] [noun sg] | 2158 |
|
| 3 | [prep] a discount [noun sg] | 28 |
|
| 4 | at [art] discount [noun sg] | 10 |
|
| 5 | at a discount [noun] | 9 |
|
| 6 | at a discount [noun sg] | 9 |
|
