| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a time when [noun prp] [vb past] | 13 |
|
| 2 | [prep] a time when [noun prp] [vb past] | 13 |
|
| 3 | at a time when [noun prp] [vb past] | 11 |
|
| 4 | at a time when [noun prp] [vb past] | 11 |
|
| 5 | a time when [noun prp] [vb past] [verb] | 6 |
|
| 6 | a time when [noun prp] [vb past] [vb pp] | 5 |
|
