| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun prp] at the time | 225 |
|
| 2 | [prep] [noun prp] at the [adj] | 163 |
|
| 3 | [noun prp] at the [adj] time | 18 |
|
| 4 | [prep] [noun prp] the [adj] time | 5 |
|
