In this *inversion* sentence, do I have to use "may" in the relative clause again?
(Assuming you are not sure, that's why you are including "may" in your sentence)

> 
> "Robbery **may** not only take international students' possessions by an unlawful force, but it **may** also endanger the victims' lives.
> 
> 
> 

Or

> 
> Robbery **may** not only take international students' possessions by an unlawful force, but it also endanger the victims' lives.
> 
> 
> 

Which should I use?