BETWEEN TWO MODIFIERS THAT COULD BE REPLACED BY AND.HE IS A QUIET,...

4. Between two modifiers that could be replaced by and.He is a quiet, shy person.(Both quiet andshymodify person.)Incorrect: Denny’s old, stamp collection is priceless.Correct: Denny’s old stamp collection is priceless.(You cannot put andbetween oldand stamp;olddescribes stampand stamp modifies collection.They do not modify the same noun.)