| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj] [noun] | 8312 |
|
| 2 | a [adj] [noun] ' | 347 |
|
| 3 | at a [noun] ' | 45 |
|
| 4 | at [adj] [noun] ' | 24 |
|
