
- Why not?
- Because I've been BUSY.
The Big Bang Theory Season 3, Episode 5

and a full-time job,
I'm sure you're too BUSY.
The Big Bang Theory Season 12, Episode 5

I'm always BUSY.
The Big Bang Theory Season 8, Episode 6

Yeah, well, maybe the village was too BUSY
The Big Bang Theory Season 10, Episode 10

He's probably BUSY.
You're worried about nothing.
The Big Bang Theory Season 6, Episode 6