| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] why do [not/n't] they | 10 |
|
| 2 | [conj] why do not they | 10 |
|
| 3 | [conj] why do n't they | 10 |
|
| 4 | [coord] why do [adv] they | 9 |
|
| 5 | [conj] why did [adv] they | 7 |
|
| 6 | and why do [adv] they | 5 |
|
| 7 | and why do [adv] they | 5 |
|
