Will Be Misunderstand or Misunderstood?

The simple answer to your question: 'You misunderstood' is correct. 'You misunderstand' must have other words before or after the phrase to be correct in your situation (as you indicated that it happened in the past).

Can be misunderstood meaning?

adjective. If you describe someone or something as misunderstood, you mean that people do not understand them and have a wrong impression or idea of them. Eric is very badly misunderstood.

How do you use misunderstand?

Examples of misunderstand in a Sentence

Don't misunderstand me—I'm not criticizing your decision. He feels that the critics have completely misunderstood his movies. She expressed herself in clear terms that no one could misunderstand.