| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adj] time and [subord] | 6 |
|
| 2 | at that time and [subord] | 6 |
|
| 3 | at that time and [subord] | 6 |
|
| 4 | at [det] time and [subord] | 6 |
|
