| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a [noun] | 4020 |
|
| 2 | [verb] at [art] time | 1750 |
|
| 3 | [verb] at [art] time | 1750 |
|
| 4 | [verb] [prep] a time | 636 |
|
| 5 | [verb] [prep] a time | 636 |
|
| 6 | [verb] at a time | 345 |
|
| 7 | [verb] at a time | 345 |
|
