| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [adj] time | 866 |
|
| 2 | [conj] at the [adj] | 533 |
|
| 3 | [conj] at the time | 415 |
|
| 4 | [conj] the [adj] time | 156 |
|
