| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [verb] at the time | 16 |
|
| 2 | [subord] [verb] at [art] time | 16 |
|
| 3 | [subord] [verb] at the time | 16 |
|
| 4 | [subord] [vb pp] at [art] time | 13 |
|
| 5 | as [verb] at [art] time | 8 |
|
