| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] at a [adj] time | 15 |
|
| 2 | [coord] at a [adj] time | 13 |
|
| 3 | and at a [adj] time | 9 |
|
| 4 | or at a [adj] time | 5 |
|
