What are you afraid of?

what Pronoun

— What is used to ask for information about things. What did you see? What do you mean? — What is used to add a clause with more information. I don't know what you mean. I'll tell you what to do. I'll see what I can do to help. — What is used when you want to describe something instead of naming it. Take what you can find. Can I see what you did? I could change it if that's what you want.

what Determinative

— What is used to ask about the member(s) of a group. What book did you buy? — What is used to add a clause to identify the member(s) of a group. I don't know what problems you mean. I'll tell you what button to push. I'll see what food I can give.

what Adjective

— used to show that you feel strongly about something. What a great book this is!

are Verb

— Are is the present tense, second person form of the verb be. Hello John, how are you? We are all happy. Are we there yet? John and Mary are playing. Are you all hungry?

you Pronoun

— Used instead of the name of the person being spoken to; it is a second-person pronoun. You are my best friend. Can I go to the shops with you? — Used to talk about anyone. You have to be 18 years old to see that film. She has problems with her eyes, and can't see you properly.

you Determinative

— Used before a word that means the person or people someone is talking to. You guys can leave now.

afraid Adjective

— If you are afraid of something, you feel fear, or worry because you think something bad will happen. I'm afraid of snakes. I can't even go near them.

of Preposition

— Made using. It is a house of cards.