| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [adj] rate | 233 |
|
| 2 | at the [adj] rate | 214 |
|
| 3 | at the basic rate | 38 |
|
| 4 | at the present rate | 20 |
|
| 5 | at the current rate | 20 |
|
| 6 | at the [adj] rates | 19 |
|
| 7 | at the standard rate | 18 |
|
| 8 | at the official rate | 15 |
|
| 9 | at the full rate | 13 |
|
| 10 | at the reduced rate | 8 |
|
| 11 | at the normal rate | 5 |
|
| 12 | at the following rate | 5 |
|
