| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] the same time as | 18 |
|
| 2 | [vb past] [prep] the same time as | 18 |
|
| 3 | [vb past] at the same time as | 16 |
|
| 4 | [vb past] at the same time as | 16 |
|
