| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and why do not they | 5 |
|
| 2 | and why do n't they | 5 |
|
| 3 | and why do [adv] they | 5 |
|
| 4 | and why do [not/n't] they | 5 |
|
| 5 | and why do they [vb infin] | 19 |
|
| 6 | and why do they [verb] | 19 |
|
