Setanta: Actually, that was the present regressive multi-perfect tense. You may have been confused by the accent.
BiPB: A slight correction to your initial post: the phrase "I'm gonna' stick feather in my ass, run around the room, and cry 'I'm an airplane! I'm an airplane! Make me take off!'" is more properly translated into Martian as:
Ack, ack,
ACK, aaaaaaack!
And now, if you'll excuse me, I'm off to get me some sweet, sweet lovin'.
ACK indeed!