| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [prep] the time when | 19 |
|
| 2 | [conj] at the time when | 12 |
|
| 3 | [subord] [prep] the time when | 8 |
|
| 4 | [coord] [prep] the time when | 7 |
|
