WALT:
We USED a different chemical
process, but it is every bit as pure.
Breaking Bad Season 2, Episode 1
♪ And all the things
That we USED to do ♪
Breaking Bad Season 4, Episode 8
Remember how we USED
to make these things look
The Big Bang Theory Season 5, Episode 5
looking at the little plug
where the ashtray USED to go?
Breaking Bad Season 5, Episode 11
They USED him to shoot my friend.
Breaking Bad Season 3, Episode 12