| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at the time [prep] | 491 |
|
| 2 | [prep] [verb] at the time | 19 |
|
| 3 | [prep] [verb] the time [prep] | 12 |
|
| 4 | [prep] at the time [prep] | 7 |
|
