The Genitive PronounsGermanEnglishunseroureueryour (informal plural)ihrertheirIhreryour (formal singular & plural)•Jul 27, 2020
In formal situations, one should address another person with their title and last name, “Herr” (Mr.) for men and “Frau” (Mrs.) for women. It is polite to continue to use formal titles until the person invites you to move on to a first-name basis.