| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at a [adj -er] [noun] | 217 |
|
| 2 | [vb pp] at a [adj -er] [noun sg] | 216 |
|
| 3 | [vb pp] at a [adj] time | 72 |
|
| 4 | [vb pp] [prep] a [adj -er] time | 44 |
|
| 5 | [verb] at a [adj -er] time | 39 |
|
| 6 | [vb pp] at [art] [adj -er] time | 37 |
|
| 7 | [vb pp] at [art] [adj -er] time | 37 |
|
| 8 | [vb pp] at a [adj -er] time | 36 |
|
| 9 | [vb pp] at a [adj -er] time | 35 |
|
