| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a time [Wh adv] social [noun] | 5 |
|
| 2 | at a time [adv] social [noun] | 5 |
|
| 3 | at a time when social [noun] | 5 |
|
| 4 | at a time when social [noun] | 5 |
|
