| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a time when the [noun prp] | 23 |
|
| 2 | at a time when the [noun prp] | 23 |
|
| 3 | at a time when the [noun prp] | 23 |
|
| 4 | [prep] a time when the [noun prp] | 23 |
|
| 5 | a time when the [noun prp] [noun] | 12 |
|
| 6 | a time when the [noun prp] [noun sg] | 6 |
|
