| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] [pron] | 9517 |
|
| 2 | [to-vb] [pron] [verb] [pron] | 2261 |
|
| 3 | [to-vb] when [pron] [verb] | 520 |
|
| 4 | [to-vb] when [verb] [pron] | 17 |
|
