| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] an [adj] | 52467 |
|
| 2 | [prep] an [adj] | 52467 |
|
| 3 | at [art] [adj] | 46644 |
|
| 4 | at [art] [adj] | 46644 |
|
| 5 | at a [adj] | 10976 |
|
| 6 | at an [adj] | 2276 |
|
