| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] they [vb past] for | 68 |
|
| 2 | what they [vb past] for | 39 |
|
| 3 | which they [vb past] for | 28 |
|
| 4 | [Wh det] they used for | 7 |
|
| 5 | [Wh det] they did for | 5 |
|
| 6 | [Wh det] they had for | 5 |
|
