| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] at a | 955 |
|
| 2 | [verb] at a time | 345 |
|
| 3 | [adv] at a time | 151 |
|
| 4 | [verb] [adv] a time | 23 |
|
| 5 | [verb] [adv] at time | 23 |
|
