| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] when they [vb past] | 324 |
|
| 2 | [vb infin] when they [vb past] | 44 |
|
| 3 | [vb infin] [adv] when they | 25 |
|
| 4 | [vb infin] [adv] they [vb past] | 5 |
|
