SO...
I am thirsty. So _____ I.
AM
I haven't written the essay yet. Neither ______ I.
HAVE
I can't go to the presentation. Neither can't I.
INCORRECT - NEITHER CAN I.
I drink too much coffee. So ______ Ellen.
DOES
Sam won't help us. Neither ______ Scott.
WILL
I'm not going out tonight. Neither I am.
INCORRECT - NEITHER AM I.
WAS
I can't forgive them for what happened. Neither ______ I.
CAN
I haven't got time. Neither have I.
CORRECT
Ann will be there soon and so ______ her sister.
WILL
You didn't tell the truth. Neither ______ Paul.
DID
CORRECT
I watched the game in a pub. So ______ I.
DID
I wouldn't like to go. Neither ______ their brother.
WOULD
I never go to the cinema. So do I.
INCORRECT - NEITHER DO I.