| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] at [adj] time | 418 |
|
| 2 | at a [adj] time | 380 |
|
| 3 | [adj] at a [adj] | 281 |
|
| 4 | [adj] at a time | 274 |
|
| 5 | [adj] a [adj] time | 243 |
|
