How to say "You are a fool." in English

You are a fool in English: You are a fool.

fool British [fu: l] American [ful] n. Fool, fool; deceived; person with a hobby; person who is fooled; vt. Fool, deceive; waste, waste; make a joke; Idle; vi. deceive; joke; tease;

[Example] 'You?fool!' she?shouted. "You idiot!" she yelled.

Extended information:

1. They?fooled?around?for?the?camera. They posed randomly in front of the camera.

2. You?are?making?a?fool?of?me. You are making a fool of me.

3. Oh?you?fool!?You've?blown?it! Oh, you fool! You're all screwed!

4. You?can't?fool?me;?I?wasn't?born?yesterday. I am a sophisticated person, you can't fool me.

5. You?damn?fool! You damn fool!

6. You're a blundering fool.

7. 'You?fool,'?he?said?aloud. "You fool," he said loudly.

8. Don't?have?any?more?to?do?with?him,?he's?trying?to?make?a?fool?of?you. Don't pay attention to him anymore, He is playing tricks on you.

Reference: Baidu Encyclopedia——fool