| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] why do n't they [verb] | 5 |
|
| 2 | [noun sg] why do n't they [verb] | 5 |
|
| 3 | [noun sg] [adv] do n't they [vb infin] | 5 |
|
| 4 | [noun sg] [Wh adv] do n't they [verb] | 5 |
|
