Thats my parents car (both parents) / (where does the apostrophe go?)
THAT'S = that is / my PARENTS' car (the car belongs to my parents)
Those are childrens clothes (where does the apostrophe go?)
CHILDREN'S clothes (the clothes belong to the children) / no apostrophe - 'clothes' is a plural noun
Shes 16 years old (where does the apostrophe go?)
SHE'S = she is / no apostrophe - 'years' is a plural noun
My friends phones are all new (more than one friend) / (where does the apostrophe go?)
My FRIENDS' phones (the phones belong to my friends, more than one friend) / no apostrophe - 'phones' is a plural noun
My friends bag is new (one friend) / (where does the apostrophe go?)
FRIEND'S bag (the bag belongs to my friend, one friend)
My uncles wife is sick (where does the apostrophe go?)
UNCLE'S wife (wife of my uncle)
I am so happy to see you (can you combine any words with an apostrophe?)
I'M = I am
Mr. Wong does not like to drink soda (can you combine any words with an apostrophe?)
DOESN'T = does not
Thats Katys book (where does the apostrophe go?)
THAT'S = that is / KATY'S (the book belongs to Katy)
She would practice swimming everyday (can you combine any words with an apostrophe?)
SHE'D = she would
Its wagging its tail (where does the apostrophe go?)
IT'S (it is) wagging / no apostrophe - second 'its' is a possessive pronoun
My brothers teachers classes (the classes taught by ONE teacher of ALL of my brothers) / (where does the apostrophe go?)
My BROTHERS' TEACHER'S classes
My brothers teachers classes (the classes taught by ONE teacher of ONE of my brothers) / (where does the apostrophe go?)
My BROTHER'S TEACHER'S classes
Its sad that the cat broke its leg (where does the apostrophe go?)
IT'S (it is) sad / no apostrophe - second 'its' is a possessive pronoun
