| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] | 58937 |
|
| 2 | [to-vb] [pron] [verb] | 16108 |
|
| 3 | [to-vb] when [pron] | 877 |
|
| 4 | [to-vb] when [verb] | 179 |
|
