[Rusty]

Originally Posted by Alfonso

Thanks a lot, Rusty and Poli. It's really clear.
What about this other possibilities:

-I don't have any coin.
-Neither have I.

-I'm not buying the drinks.
-Neither do I.

Are they correct?

What about these other possibilities:

-I don't have any coins.
-Neither do I.

-I'm not buying the drinks.
-Neither am I.