| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun prp] at [adj] | 830 |
|
| 2 | [noun prp] at [adj] time | 287 |
|
| 3 | [prep] [noun prp] [adj] time | 97 |
|
| 4 | [prep] at [adj] time | 34 |
|
