| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't [pron] do it | 20 |
|
| 2 | why do n't [pron] do [pers pn] | 20 |
|
| 3 | why [verb] n't [pron] do [pers pn] | 20 |
|
| 4 | why [verb] n't [pers pn] do [pers pn] | 20 |
|
| 5 | why [vb base] n't [pron] do [pers pn] | 15 |
|
| 6 | why do n't [pron] do [pers pn] | 15 |
|
| 7 | why [verb] n't you do [pers pn] | 12 |
|
| 8 | why [verb] n't you do [pers pn] | 12 |
|
| 9 | why did n't [pron] do [pers pn] | 5 |
|
| 10 | why [vb past] n't [pron] do [pers pn] | 5 |
|
