How DARE you use common sense!!
Most people in the world are multilingual.
We in America tend not to be as there’s no real need.
That’s why the thought that they were not in those days seems weird to some people.
The fact that that was the case is shown in the inscription Pilate wrote.
He wrote it in three languages. Clearly at least those three were in widespread use in Jerusalem in those days.
I’m sure Jesus would have been fluent in any language He needed to use on the occasion.