| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] time for | 26 |
|
| 2 | at [art] time for | 26 |
|
| 3 | at the time for | 14 |
|
| 4 | at the time for | 14 |
|
| 5 | at a time for | 12 |
|
| 6 | at a time for | 12 |
|
