Listen to all your fans
vs
Listen to all of your fans
OR
Name all the states
vs
Name all of the states
What part of language is of in these examples? Is it necessary or optional, correct or incorrect?
Listen to all your fans
vs
Listen to all of your fans
OR
Name all the states
vs
Name all of the states
What part of language is of in these examples? Is it necessary or optional, correct or incorrect?