| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] a [noun] | 650 |
|
| 2 | [adv] a [noun] [unc] | 489 |
|
| 3 | at a [noun] [unc] | 292 |
|
| 4 | at [adv] [noun] [unc] | 42 |
|
| 5 | at [adv] a [unc] | 5 |
|
