| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [verb] at a | 400 |
|
| 2 | [verb] at a time | 345 |
|
| 3 | [conj] at a time | 73 |
|
| 4 | [conj] [verb] a time | 12 |
|
