| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] or [num] at [art] time | 19 |
|
| 2 | [adj] or [num] at a time | 11 |
|
| 3 | [adj] or [num] at the time | 8 |
|
| 4 | [adj] or two at [art] time | 5 |
|
| 5 | one or [num] at [art] time | 5 |
|
| 6 | one or [num] at [art] time | 5 |
|
