| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adj] [noun] | 14568 |
|
| 2 | at [adj] time | 7407 |
|
| 3 | at [adj] [noun sg] | 6466 |
|
| 4 | [prep] [adj] time | 1483 |
|
| 5 | at [adj] time | 1176 |
|
