| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [verb] at the time [prep] | 10 |
|
| 2 | have [vb pp] at the time [prep] | 10 |
|
| 3 | have [verb] at the time of | 8 |
|
| 4 | had [verb] at the time [prep] | 7 |
|
