[The phrase based off is an improper form derived from the phrase "based on."]
You already did. =)
I will fair off if i stick to my dreams
You had to take your hat off to him based on his success.
He tried to ward off the evil spirits.
the captain told the crew to knock off.
He was off of the medication for nearly a year now.
They meandered off the trail.
he was hanging off of a cliff.
Yes, you should use a comma to set off a direct address in a sentence. For example, in the sentence "John, can you please pass the salt?" the comma after "John" sets off the direct address.
Do you use commas to off set the phrase as well as
The calendar we use is based on the sun. Did you know that some calendars are based on the moon?
i was rip-off when i purchased the flowers this morning.