Thought 以为  Yǐwéi V Think/Believe/Consider Erroneously True Implication

 yǐwéi* v. think/believe/consider (usually erroneously = to take it to be true that,,, usually there is an implication that the notation was mistaken - except when expressing one's own current expressions )   | Rénmen ∼ wǒ mílù le. People thought I had lost my way.

我还~是他呢。I had thought it was her.

她~我们在议论她，直朝我们翻白眼。She kept glaring at us, thinking that we have gossiped about her.