Question 2: Whenever and wherever, English translation (Never/Wheeler whenever and wherever) can only guide adverbial clauses, and the latter two can also guide subject clauses.
Question 3: Whenever, remember to smile.
Remember to smile anytime, anywhere.
R floating members, anytime, anywhere * * * files.
Question 4: I will always support you in English. Anyway, no matter what time, I will be behind you.
Question 5: Whenever and wherever you need me, I will always be by your side.
or
Whenever and wherever you need me, I will always be by your side.
Like never, you can use it anywhere, but it is not recommended.