| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] we [vb infin] | 179 |
|
| 2 | do [not/n't] we [vb infin] [prep] | 23 |
|
| 3 | why do we [vb infin] [prep] | 16 |
|
