| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a [adj -er] | 457 |
|
| 2 | [verb] at a time | 345 |
|
| 3 | at a [adj -er] time | 75 |
|
| 4 | [verb] a [adj -er] time | 54 |
|
