| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [det] time | 6916 |
|
| 2 | [vb past] at the time | 331 |
|
| 3 | [vb past] at [det] time | 143 |
|
| 4 | [vb past] at the [det] | 115 |
|
