| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] at a [adj] [noun] | 412 |
|
| 2 | [verb] [adv] at a [adj] [noun sg] | 388 |
|
| 3 | [verb] [adv] [prep] a [adj] time | 156 |
|
| 4 | [verb] [adv] [prep] a [adj] time | 156 |
|
| 5 | [verb] [adv] at [art] [adj] time | 154 |
|
| 6 | [verb] [adv] at a [adj] time | 18 |
|
| 7 | [verb] [adv] at a [adj] time | 18 |
|
