| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] | 58937 |
|
| 2 | [noun prp] [pron] [verb] | 17507 |
|
| 3 | [noun prp] when [pron] | 1682 |
|
| 4 | [noun prp] when [verb] | 99 |
|
