| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] when [pron] [verb] it | 40 |
|
| 2 | [vb past] when they [verb] [pron] | 30 |
|
| 3 | [vb past] [conj] they [verb] it | 24 |
|
| 4 | [verb] when they [verb] it | 13 |
|
