The way the question was originally spelled, I can't tell if it was trying to ask if aliens really exist or asking where they are.
Assuming that we mean "space aliens" here, the answers to both are the same:
We don't know.
There's no credible evidence that life exists anywhere but Earth (a couple of inbred mouth-breathers claiming to have been "probed" is not "credible evidence").
true, aliens ain't real.
aliens aren't real.
aliens aren't real
NO
Aliens may or may not be real. It hasn't been exactly proven
Aliens are not real, there for this is un-answerable.
if you mean aliens then no. aliens aren't real
aliens are not invented. they are real
Aliens do not come to our planet but they are real.
'Aliens' are real. In any given country, a foreigner may be described as an Alien.
No.
No.