| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun] ' | 320 |
|
| 2 | at [art] [adj] [noun] ' | 73 |
|
| 3 | at a [adj] [noun] [unc] | 61 |
|
| 4 | at a [adj] [noun] ['s] | 51 |
|
| 5 | at a [adj] [noun] ' | 18 |
|
