| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] [prep] the time of | 60 |
|
| 2 | [num] at the time of | 53 |
|
| 3 | [num] at the time of | 53 |
|
| 4 | million [prep] the time of | 5 |
|
