| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] at a [adj] [noun] | 272 |
|
| 2 | [adv] [verb] at a [adj] [noun sg] | 260 |
|
| 3 | [adv] [verb] [prep] a [adj] time | 90 |
|
| 4 | [adv] [verb] [prep] a [adj] time | 90 |
|
| 5 | [adv] [verb] at [art] [adj] time | 86 |
|
| 6 | [adv] [verb] at a [adj] time | 8 |
|
| 7 | [adv] [verb] at a [adj] time | 8 |
|
