1) There is a holy, mistaken zeal in politics, as well as religion, by per-suading others we convince. 

2) The vices of the rich and great are mistaken for error, and those of the poor and lowly, for crimes. 

3) You are completely mistaken about Jane.

4) We soon discovered we'd been mistaken.

5) You must have mistaken my intentions.

6) It was a simple case of mistaken identity.

7) He was mistaken for the minister.

8) He has evidently mistaken me.

9) He seems to be mistaken in the new treatment.

10) His forthright manner can be mistaken for rudeness.

11) Unless I'm mistaken(sentencedict.com),(http://sentencedict.com/mistaken.html) she was back at work yesterday.

12) Kindness is easily mistaken for love.

13) You are very much mistaken if you think that people will agree to these changes.

14) She is innocent; it was a case of mistaken identity.

15) How could she have been mistaken about a thing like that?

16) Designers are mistaken if they believe we all want to be supermodel clones.

17) Unless I'm very much mistaken, that's Paul's wife over there.

18) I was mistaken about the girl, she's not as clever as I thought.

19) I think you're mistaken.

20) I hope I've not mistaken the day.

21) I'm not mistaken, am I?

22) It sometimes becomes that those accounts are mistaken.

23) Methinks he is not mistaken.

24) What she said convinced me that I was mistaken.

25) I must have mistaken your meaning/what you meant.

26) Unless I'm mistaken, he didn't specify what time.

27) She is often mistaken for her twin sister.

28) It can't have been my car. You must be mistaken.

29) I thought I saw someone I knew, but I must have been mistaken.

30) The dead men could have been the victims of mistaken identity. Their attackers may have wrongly believed them to be soldiers.