| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't you [vb infin] back | 22 |
|
| 2 | why [verb] n't you [vb infin] back | 22 |
|
| 3 | why do n't you [vb infin] back | 17 |
|
| 4 | why [vb base] n't you [vb infin] back | 17 |
|
| 5 | why [verb] n't you go back | 12 |
|
| 6 | why [verb] n't you come back | 9 |
|
