動詞 mistake:

1. identify incorrectly
   同義詞：mistake, misidentify
2. to make a mistake or be incorrect
   同義詞：err, mistake, slip

形容詞 mistaken:

1. wrong in e.g. opinion or judgment
   同義詞：misguided
2. arising from error
   同義詞：false

1. I must have mistaken your meaning/what you meant.
   我一定誤會了你的意思。
2. He seems to have mistaken a plus for a minus.
   他似乎把正號誤作負號了。
3. I suppose you're mistaken there.
   我認為在這點上您錯了。
4. It appears to me that you are all mistaken.
   我覺得你們全搞錯了。
5. If you thought she intended to be rude, you were mistaken.
   如果你認為她是故意粗魯無禮，那你就弄錯了。
6. You must have mistaken her for her sister.
   你一定是把她誤認為是她的姊妹了。
7. If I'm not mistaken, that's the man we saw on the bus.
   要是我沒認錯人的話，我們在公共汽車上看見的就是那個男子。

mis.tak.en

v.（動詞）
Past participle of mistake
mistake的過去分詞
adj.（形容詞）
Wrong or incorrect in opinion, understanding, or perception.
誤解的：意見，理解或了解錯誤或不正確的
Based on error; wrong:
錯誤的：建立在錯誤基礎上的；錯的：
例句：
a mistaken view of the situation.
對形勢的錯誤看法

【引伸】
mistak.enly
adv.（副詞）