| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] they have found [pron] | 6 |
|
| 2 | [Wh det] they [vb past] found [pron] | 5 |
|
| 3 | [Wh det] they had found [pron] | 5 |
|
