| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adv] [adj] time | 41 |
|
| 2 | at a [adv] [adj] time | 41 |
|
| 3 | at a very [adj] time | 10 |
|
| 4 | at a more [adj] time | 9 |
|
| 5 | at a [adv] convenient time | 6 |
|
| 6 | at a [adv] convenient time | 6 |
|
| 7 | at a particularly [adj] time | 6 |
|
| 8 | at a [adv] difficult time | 5 |
|
| 9 | at a [adv] difficult time | 5 |
|
