| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pron] do [pron] | 52 |
|
| 2 | why do [not/n't] [pers pn] do [pron] | 50 |
|
| 3 | why do [not/n't] they [verb] [pron] | 45 |
|
| 4 | why do [not/n't] they [vb infin] [pron] | 45 |
|
| 5 | [adv] do [not/n't] they do [pron] | 9 |
|
| 6 | why do [adv] they do [pron] | 8 |
|
| 7 | why do [not/n't] they do [pron] | 8 |
|
| 8 | why do [not/n't] they do [pron] | 8 |
|
| 9 | why do [not/n't] they do [pron] | 8 |
|
| 10 | [Wh adv] do [not/n't] they do [pron] | 8 |
|
| 11 | why [verb] [not/n't] they do [pron] | 8 |
|
