| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] [prep] | 10539 |
|
| 2 | [det] [pron] [verb] [prep] | 3471 |
|
| 3 | [det] when [pron] [verb] | 481 |
|
| 4 | [det] when [verb] [prep] | 19 |
|
