| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [adv] [num] | 415 |
|
| 2 | at [adv] [num] time | 157 |
|
| 3 | [vb past] at [num] time | 55 |
|
| 4 | [vb past] [adv] [num] time | 36 |
|
