| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [verb] at [art] time | 33 |
|
| 2 | [det] [verb] at a [noun] | 32 |
|
| 3 | [adj] [verb] at a time | 20 |
|
| 4 | [det] [verb] [prep] a time | 14 |
|
