Primary amine	Secondary amine	Tertiary amine

An amine is a molecule which has a nitrogen atom that can behave as a base. An amine can be thought of coming from ammonia. The difference is that the three hydrogens in ammonia are changed to any group or atom. If only one of the hydrogens is changed, the amine is called primary. If two are changed, the amine is called secondary. If all three are changed then it is called tertiary.