| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't they just [vb infin] | 16 |
|
| 2 | why do [not/n't] they just [vb infin] | 9 |
|
| 3 | why did [not/n't] they just [vb infin] | 7 |
|
