"Aren't" is a contraction of "are not" and is accepable informal English.
yes, they arent real, but theres some ''monsters'' that live under bridges they are in fantasy books. its a word
no its lego and legos arent real
no they arent real but they do look good
they arent real
Vampires arent real.
Leprechauns arent real.......
turtles arent real
no,because vampires arent real
they come from lamps, but in real life they arent real.. obviously ;)
you dont ghosts arent real
guess what, dragons arent real
some are and some arent