| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [pers pn] not [verb] | 124 |
|
| 2 | why do [pers pn] not [vb infin] | 124 |
|
| 3 | why do [pron] not acknowledge | 5 |
|
| 4 | why [verb] [pers pn] not acknowledge | 5 |
|
| 5 | why do [pers pn] not acknowledge | 5 |
|
| 6 | why do [pers pn] [adv] acknowledge | 5 |
|
| 7 | [adv] do [pers pn] not acknowledge | 5 |
|
