| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [noun] [vb past] [pers pn] | 607 |
|
| 2 | [vb past] when [noun] [vb past] | 231 |
|
| 3 | [vb past] [noun] [vb past] [pers pn] | 143 |
|
