憑什麼
- (spoken) why?
- for which reason?
for what reason; what makes you think (you can do something); on what grounds; on what authority; who are they (to do something)
Examples
Why do I have to help them?
Source: Tatoeba
Why should I take the time to do that?
Source: Tatoeba
Why's Tom allowed to do that, but I'm not?
Source: Tatoeba
It's not fair! I have to do the hard work!
Source: Tatoeba
What makes you think the Middle East is more important than the Andes?
Source: Tatoeba