| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a time of | 293 |
|
| 2 | at a time in | 44 |
|
| 3 | at a time like | 43 |
|
| 4 | at a time to | 13 |
|
| 5 | at a time for | 12 |
|
| 6 | at a time on | 10 |
|
| 7 | at a time with | 9 |
|
| 8 | at a time without | 8 |
|
| 9 | at a time by | 8 |
|
| 10 | at a time at | 7 |
|
| 11 | at a time into | 6 |
|
| 12 | at a time from | 5 |
|
