| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [vb pp] at [det] [noun] | 32 |
|
| 2 | [prep] [noun] [verb] at [det] time | 22 |
|
| 3 | [prep] [noun] [vb pp] at [adj] time | 17 |
|
| 4 | [prep] [noun] [vb pp] [prep] [det] time | 11 |
|
