| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [prep] the [det] time | 166 |
|
| 2 | at [prep] the same time | 166 |
|
| 3 | at [prep] the same time | 166 |
|
| 4 | at about the [adj] time | 136 |
|
| 5 | at around the [adj] time | 31 |
|
