| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] at time | 14 |
|
| 2 | [adv] at certain time | 12 |
|
| 3 | [verb] at certain time | 11 |
|
| 4 | [verb] [adv] at certain | 9 |
|
