| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't we [vb infin] [art] | 28 |
|
| 2 | [Wh adv] do n't we [vb infin] a | 16 |
|
| 3 | [Wh adv] do n't we [vb infin] the | 10 |
|
| 4 | [Wh adv] do n't we have [art] | 5 |
|
