| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [adv] at a [noun] | 48 |
|
| 2 | [noun pl] [adv] at [art] time | 41 |
|
| 3 | [noun pl] [adv] at [art] time | 41 |
|
| 4 | [noun] [adv] at a time | 19 |
|
| 5 | [noun pl] [adv] [prep] a time | 18 |
|
| 6 | [noun pl] [adv] [prep] a time | 18 |
|
| 7 | [noun pl] [adv] at a time | 11 |
|
| 8 | [noun pl] [adv] at a time | 11 |
|
