| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | or at a [adj] [noun sg] | 53 |
|
| 2 | or at a [adj] [noun] | 53 |
|
| 3 | [conj] at a [adj] time | 21 |
|
| 4 | [coord] at a [adj] time | 15 |
|
| 5 | or [prep] a [adj] time | 13 |
|
| 6 | or [prep] a [adj] time | 13 |
|
| 7 | or at [art] [adj] time | 9 |
|
| 8 | or at a [adj] time | 5 |
|
| 9 | or at a [adj] time | 5 |
|
| 10 | or at a [adj] time | 5 |
|
