| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] the time | 412 |
|
| 2 | [vb past] at the time | 331 |
|
| 3 | [prep] at the time | 41 |
|
| 4 | [vb past] [prep] at the | 23 |
|
