| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] at a rate | 9 |
|
| 2 | [to-vb] [noun] at a rate | 10 |
|
| 3 | [to-vb] [noun pl] at a rate | 5 |
|
| 4 | [to-vb] at a [adj] rate | 31 |
|
| 5 | [to-vb] at a [adj] rate | 22 |
|
| 6 | [to-vb] at a [adj -er] rate | 9 |
|
