| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a time when [adj] [noun] | 126 |
|
| 2 | at a [noun sg] when [adj] [noun pl] | 62 |
|
| 3 | at a [noun sg] when [adj] [noun sg] | 56 |
|
| 4 | at a [noun sg] when [adj] [n mass] | 7 |
|
| 5 | at a [noun sg] when other [noun] | 6 |
|
| 6 | at a [noun sg] when social [noun] | 5 |
|
