| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a time | 345 |
|
| 2 | [verb] [to-vb] at a | 250 |
|
| 3 | [verb] [to-vb] a time | 27 |
|
| 4 | [to-vb] at a time | 18 |
|
| 5 | [verb] [to-vb] at time | 13 |
|
