Question

True or false: The endings of any verb in the futur simple are always the same.

Answer 1

True or false: The endings of any verb in the future simple are always the same.

It's true for most but not all, for example, être, avoir, aller etc.have irregular future stems. There are only a handful of such verbs. Thus, I'm not sure how True - False applies. 

Answer 2

False. This is mostly true but there are irregular verbs which make the exception.