| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] [prep] the time when | 33 |
|
| 2 | [adv prt] to the time when | 26 |
|
| 3 | back [prep] the time when | 20 |
|
| 4 | up [prep] the time when | 8 |
|
| 5 | [adv prt] at the time when | 5 |
|
