| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] time when [adj] people | 7 |
|
| 2 | at a time when [adj] people | 7 |
|
| 3 | at a time when [adj] people | 7 |
|
| 4 | at [art] time when [adj] people | 7 |
|
