| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adv] [adj] [noun] | 972 |
|
| 2 | are a [adv] [adj] [noun] | 355 |
|
| 3 | are at [adv] [adj] [noun] | 110 |
|
| 4 | are at a [adj] [noun] | 53 |
|
| 5 | are at a [adv] [adj] | 17 |
|
