| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] why [verb] n't they [vb infin] | 11 |
|
| 2 | [adv] why do [adv] they [vb infin] | 11 |
|
| 3 | [adv] why [verb] [not/n't] they [vb infin] | 11 |
|
| 4 | [adv] why [verb] not they [vb infin] | 11 |
|
| 5 | [adv] why [verb] [adv] they [vb infin] | 9 |
|
| 6 | [adv] why did [adv] they [vb infin] | 7 |
|
| 7 | [adv] why [vb past] [adv] they [vb infin] | 7 |
|
