| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [det] time | 6919 |
|
| 2 | about the [det] time | 218 |
|
| 3 | at about the [det] | 165 |
|
| 4 | at about [det] time | 60 |
|
| 5 | at about the time | 39 |
|
