| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] at the time when | 6 |
|
| 2 | [vb past] just at the time when | 5 |
|
| 3 | [vb past] just at the time when | 5 |
|
| 4 | [vb past] [adv] at the time when | 5 |
|
