| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be at [art] rate | 16 |
|
| 2 | be at [art] rate | 16 |
|
| 3 | be at the rate | 9 |
|
| 4 | be at the rate | 9 |
|
| 5 | be at a rate | 7 |
|
| 6 | be at a rate | 7 |
|
| 7 | be at [art] rate | 5 |
|
| 8 | was at [art] rate | 5 |
|
