| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at [adv] [art] rate | 11 |
|
| 2 | [verb] at [adv] the rate | 10 |
|
| 3 | [verb] at twice [art] rate | 8 |
|
| 4 | [vb pp] at [adv] [art] rate | 5 |
|
| 5 | [v-ing] at [adv] [art] rate | 5 |
|
