How to say "don't be foolish" in Spanish?
How do you say "don't be foolish" in Spanish in usted and ustedes form?
3 Answers
No seas tonto. Literally, That you might not be foolish.
You would say, "No esté tonto" for usted, and "No estén tontos" for ustedes.
How about...
No haga ninguna tontería ---> usted
No hagan ninguna tontería ---> ustedes
This is probably more along the lines of "don't act foolish".