| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a time when | 1443 |
|
| 2 | [adv] [prep] a time | 382 |
|
| 3 | [adv] a time when | 23 |
|
| 4 | [adv] [prep] time when | 10 |
|
