| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at a [adj] | 1457 |
|
| 2 | at a [adj] rate | 627 |
|
| 3 | [vb pp] at a rate | 61 |
|
| 4 | [vb pp] a [adj] rate | 28 |
|
| 5 | [vb pp] at [adj] rate | 10 |
|
