Demonstrative pronouns are pronouns that let us "demonstrate" something, (that's what I say to make my life easier) like mainly an object or thing. Also, when we're talking about these types of pronouns, don't you think we have to demonstrate (like pointing) and say "that" or "these" ?????
Some demonstrative pronouns are:
• this
• that
• those
• these
So, the pronoun that is not a demonstrative pronoun is:
• them
