"You are our wives."
Translation:Ihr seid unsere Frauen.
You have to use the correct verb conjugation for the subject personal pronoun you are using. The correct verb when using the subject pronoun ihr is seid
You are our wives - it also accepted Sie sind unsere Frauen (which is a mistake - so i think it should be fixed) Why is it a mistake? It would either mean - they are our wives or it would mean - You (singular - politelly) are our wives (makes no sense to refer to one person as if it was a group of people)