| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a time | 345 |
|
| 2 | [conj] at a time | 73 |
|
| 3 | [verb] [conj] at a | 54 |
|
| 4 | [verb] [conj] a time | 11 |
|
