| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] at a [adj -er] rate | 14 |
|
| 2 | [is] [vb pp] at a [adj -er] [noun] | 11 |
|
| 3 | [is] [vb pp] at a [adj] rate | 10 |
|
| 4 | [is] [verb] at a [adj -er] rate | 10 |
|
| 5 | [is] [vb pp] [prep] a [adj -er] rate | 8 |
|
| 6 | [is] [vb pp] [prep] a [adj -er] rate | 8 |
|
| 7 | [is] [vb pp] at [art] [adj -er] rate | 5 |
|
| 8 | [is] [vb pp] at a [adj -er] rate | 5 |
|
| 9 | [is] [vb pp] at a [adj -er] rate | 5 |
|
| 10 | [is] [vb pp] at [art] [adj -er] rate | 5 |
|
