| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] did [adv] they [vb infin] it | 6 |
|
| 2 | [Wh adv] did [adv] they [vb infin] it | 6 |
|
| 3 | why did [adv] they [vb infin] it | 6 |
|
| 4 | why did [adv] they [vb infin] it | 6 |
|
