| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [prep] the time of | 29 |
|
| 2 | at [prep] the time of | 19 |
|
| 3 | at [prep] the time of | 19 |
|
| 4 | [prep] about the time of | 17 |
|
| 5 | [prep] at the time of | 7 |
|
| 6 | [prep] around the time of | 5 |
|
