| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [vb base] [prep] | 2868 |
|
| 2 | [unc] [pron] [vb base] [prep] | 444 |
|
| 3 | [unc] when [pron] [vb base] | 178 |
|
