| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the time [prep] [art] | 1254 |
|
| 2 | [vb past] at the time [prep] | 61 |
|
| 3 | [vb past] at the time [art] | 11 |
|
| 4 | [vb past] the time [prep] [art] | 8 |
|
