When is
your birthday?
-My birthday is May 2. When is yours?
-My birthday is in the
fall, in November.
When is your
Mom's birthday?
-My mom's birthday is in the summer.
It is August 9. When is
your mom's?
-Her birthday is February 10.
When is your dad's?
-His birthday is January 12. It is in winter.
If this conversation were taking place in Australia, remember
that autumn (fall) would be the months of March, April and
May and winter would be June, July and August!
Your mom's birthday. The apostrophe plus "s" is used
to indicate a possessive in English. A possessive means that
something belongs to something or someone as in the car's
door, my dog's collar, my brother's book. If you have
two brothers, you would write my brothers' book.