| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] at a | 250 |
|
| 2 | [verb] at a rate | 172 |
|
| 3 | [to-vb] at a rate | 13 |
|
| 4 | [verb] [to-vb] a rate | 7 |
|
