| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj] [adj] | 589 |
|
| 2 | a [adj] [adj] [unc] | 569 |
|
| 3 | at [adj] [adj] [unc] | 50 |
|
| 4 | at a [adj] [unc] | 27 |
|
