| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at twice the rate | 8 |
|
| 2 | at twice the rate [prep] | 8 |
|
| 3 | at twice the rate [prep] | 8 |
|
| 4 | at twice the rate of | 7 |
|
| 5 | at twice the rate of | 7 |
|
