| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] at a | 581 |
|
| 2 | [verb] at a time | 345 |
|
| 3 | [adv] at a time | 116 |
|
| 4 | [adv] [verb] a time | 31 |
|
| 5 | [adv] [verb] at time | 5 |
|
