| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pron] | 1553 |
|
| 2 | [adv] do [not/n't] they | 229 |
|
| 3 | why [verb] [not/n't] they | 159 |
|
| 4 | why do [not/n't] they | 143 |
|
| 5 | why [vb base] [not/n't] they | 101 |
|
| 6 | why do [adv] they | 92 |
|
