| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a time [Wh adv] [noun] | 351 |
|
| 2 | at a time when [noun] | 350 |
|
| 3 | at a time when [noun] | 350 |
|
| 4 | at a time [adv] [noun sg] | 145 |
|
| 5 | at a time [adv] [noun prp] | 102 |
|
| 6 | at a time [adv] [noun pl] | 96 |
|
| 7 | at a time [adv] [n mass] | 8 |
|
| 8 | at a time [adv] britain | 8 |
|
| 9 | at a time [adv] britain | 8 |
|
| 10 | at a time [adv] government | 5 |
|
