| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [verb] at [art] rate of | 20 |
|
| 2 | are [verb] at [art] rate of | 20 |
|
| 3 | are [v-ing] at [art] rate of | 13 |
|
| 4 | are [verb] at the rate of | 12 |
|
| 5 | are [verb] at the rate of | 12 |
|
| 6 | are [verb] at a rate of | 8 |
|
| 7 | are [verb] at a rate of | 8 |
|
| 8 | are [vb pp] at [art] rate of | 7 |
|
