| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a time of | 449 |
|
| 2 | [adv] [prep] a time | 382 |
|
| 3 | [adv] [prep] time of | 76 |
|
| 4 | [adv] a time of | 13 |
|
