
You can't impose a secret
on an ex post facto BASIS.
The Big Bang Theory Season 2, Episode 1

Yes, we communicate on a daily BASIS,
but no, she is not my girlfriend.
The Big Bang Theory Season 4, Episode 1

to determine the BASIS of humor.
The Big Bang Theory Season 7, Episode 12

Finally getting used to them
doing it on a daily BASIS?
The Big Bang Theory Season 4, Episode 18

I remotely repair satellites
on a regular BASIS.
The Big Bang Theory Season 1, Episode 14