| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] a [adj] [noun pl] | 265 |
|
| 2 | at [noun prp] [adj] [noun pl] | 206 |
|
| 3 | at a [adj] [noun pl] | 158 |
|
| 4 | at [noun prp] a [adj] | 52 |
|
