| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv prt] at a [noun] | 318 |
|
| 2 | [verb] [adv prt] at [art] time | 97 |
|
| 3 | [verb] [adv prt] [prep] a time | 63 |
|
| 4 | [verb] [adv prt] [prep] a time | 63 |
|
| 5 | [verb] [adv] at a time | 38 |
|
| 6 | [verb] [adv prt] at a time | 25 |
|
