See, Leonard refused to PARTICIPATE
The Big Bang Theory Season 9, Episode 21
He made me sign a waiver,
PARTICIPATE in an emergency fire drill...
The Big Bang Theory Season 4, Episode 24
Participate in the what?
The Big Bang Theory Season 1, Episode 1
Yes, it tells us that you PARTICIPATE
in the mass cultural delusion...
The Big Bang Theory Season 1, Episode 1
...we're going to PARTICIPATE
in my cousin Leopold's drug intervention.
The Big Bang Theory Season 1, Episode 10