| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj -er] [noun] | 1313 |
|
| 2 | at a [adj -er] [noun sg] | 1305 |
|
| 3 | at a [adj] time | 433 |
|
| 4 | [prep] a [adj -er] time | 132 |
|
| 5 | [prep] a [adj -er] time | 132 |
|
| 6 | at [art] [adj -er] time | 77 |
|
| 7 | at a [adj -er] time | 75 |
|
| 8 | at a [adj -er] time | 75 |
|
