| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] at [det] time | 454 |
|
| 2 | [verb] [noun] at [det] time | 123 |
|
| 3 | [prep] [verb] [noun] at [det] | 39 |
|
| 4 | [prep] [verb] at [det] time | 13 |
|
