![Sheldon, this beaker used
to contain cerebral spinal fluid
Sheldon, this beaker used
to contain cerebral spinal fluid](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Sheldon, this beaker USED
to contain cerebral spinal fluid
The Big Bang Theory Season 5, Episode 16
![You know, I used to throw
Halloween parties all the time
You know, I used to throw
Halloween parties all the time](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
You know, I USED to throw
Halloween parties all the time
The Big Bang Theory Season 12, Episode 6
![- No, I haven't.
- Get used to it.
- No, I haven't.
- Get used to it.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- No, I haven't.
- Get USED to it.
The Big Bang Theory Season 1, Episode 2
![Used to be you couldn't look at me.
Used to be you couldn't look at me.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Used to be you couldn't look at me.
Game of Thrones Season 8, Episode 4
![Our father used to tell us
Our father used to tell us](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Our father USED to tell us
Game of Thrones Season 3, Episode 9