| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at an [adj -er] [noun] | 145 |
|
| 2 | at an [adj -er] [noun sg] | 144 |
|
| 3 | at [art] [adj -er] time | 77 |
|
| 4 | at [art] [adj -er] time | 77 |
|
| 5 | at a [adj -er] time | 75 |
|
| 6 | at an [adj] time | 53 |
|
| 7 | [prep] an [adj -er] time | 15 |
|
| 8 | at an [adj -er] time | 5 |
|
