Have you endured so many things for nothing, if indeed it was for nothing?
Have ye suffered so many things in vain? if it be yet in vain.
Have you suffered so many things and experienced so much all for nothing (to no purpose)–if it really is to no purpose and in vain?
Did ye suffer so many things in vain? if it be indeed in vain.
Did you experience so much for nothing? I wonder if it really was for nothing.
Have you been suffering so much without a reason? If so, then it is in vain.