So, when we refer to an exam that is yet to take place, we’d say “I hope you pass the exam”, using Present Simple. At the same time, we do say “I hope you’ll be able to do it” rather than “I hope you’re able to do it”, even though what we refer to is the same kind of future as in the very first sentence. What is the rule: when do we use Present Simple after the verb “hope” and when do we use the future tense?
Your basic information is not correct.
I hope you’re able to do it
is just as acceptable as
I hope you’ll be able to do it.
I hope you’ll pass the exam
is just as acceptable as
I hope you pass the exam.
Both are clearly ‘acceptable’, Jaro but there is a difference in emphasis between: I hope you pass and I hope you’ll pass. When you add the modal ‘will’ ('ll), you strengthen the hope that the other person is actually going to pass.
Alan