| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [not/n't] you [verb] | 388 |
|
| 2 | why did [not/n't] you [vb infin] | 388 |
|
| 3 | why did you [vb infin] [verb] | 68 |
|
| 4 | did [not/n't] you [vb infin] [verb] | 22 |
|
