| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [adv] at the time | 9 |
|
| 2 | [verb] [adv] [adv] at the time | 9 |
|
| 3 | [verb] [adv] [adv] at the time | 9 |
|
| 4 | [v-ing] [adv] [adv] at the time | 6 |
|
