| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [det] [noun] | 24438 |
|
| 2 | at [det] [noun sg] | 20645 |
|
| 3 | [prep] [det] time | 12046 |
|
| 4 | [prep] [det] time | 12046 |
|
| 5 | at [adj] time | 7407 |
|
| 6 | at [det] time | 7156 |
|
| 7 | at [det] time | 6299 |
|
