| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj -er] [noun] | 1313 |
|
| 2 | [adv] at a [noun] | 1213 |
|
| 3 | [adv] a [adj -er] [noun] | 609 |
|
| 4 | [adv] at a [adj -er] | 86 |
|
| 5 | [adv] at [adj -er] [noun] | 59 |
|
