They both **understand ** English, and all of the other animals speak English.
I’ve been re-watching Tom and Jerry Tales and couldn’t help but notice this.
Sometimes they do.
Jerry has also been known to have a little dialog. And some smooth moves.
When they speak, they speak English. It’s only that they don’t speak all that much. According to the first movie, they just didn’t have much to say to each other.
Whenever someone mention T&J, that earworm always gets stuck in my head.