| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't we [adv] [vb infin] | 28 |
|
| 2 | why do [adv] we [adv] [vb infin] | 28 |
|
| 3 | why do not we [adv] [vb infin] | 28 |
|
| 4 | why do [not/n't] we [adv] [vb infin] | 28 |
|
