you are同you is有咩唔同?

YOU系用ARE吾系用IS
IS淨系用系HE SHE IT
ARE系用系YOU THEY嗰啲

is是用he she it are是用we they you

You should always be followed by ' are '. We never use You ' is '

We use ' is ' for He, She, It

We use ' are ' for You, We, They

We use ' am ' for I

Hope this helps =)