| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] at [art] | 3278 |
|
| 2 | [adv] at [art] time | 648 |
|
| 3 | [vb past] at [art] time | 398 |
|
| 4 | [vb past] [adv] [art] time | 47 |
|
