| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | or [num] at [art] time | 23 |
|
| 2 | or [num] at [art] time | 23 |
|
| 3 | or [num] at a time | 15 |
|
| 4 | or [num] at a time | 15 |
|
| 5 | or two at [art] time | 8 |
|
| 6 | or [num] at the time | 8 |
|
| 7 | or [num] at the time | 8 |
|
