Mistaken

You may have mistaken Jane for his sister.

Your policy is mistaken.

Admitting what you say, I still think you are mistaken.

Perry is mistaken in thinking that Emmet's theory was constructed without reference to Newtonian physics.

You are mistaken as to what makes him so nervous.

At last he realized that he was mistaken.

I'm afraid you're mistaken.

The war resulted from a mistaken policy.

I pointed out that he was mistaken about the matter.

If you do it that way you won't be mistaken.