7 Comments
Don't we usually say, "it's someone's birthday today"? Someone has birthday sounds strange to me
June 5, 2017
Yes, English is a crazy language, isn't it? We often use "their" instead of "his or her", and "they / them" instead of "he / she / him / her".
January 11, 2017
It's a non-specific pronoun. Someone is singular/ambiguous because we don't have information on their gender. So, unless you know that the "someone" is a boy or girl you would use "their" in the place of his/her
June 14, 2017
