Do you know why Rita’s response below is incorrect?
John: I didn’t like that movie very much.
Rita: Me too.
You can only use “Me too” as a response to positive statements (not negative ones).
“I didn’t like …” is a negative statement. For this, you can respond with “Me neither”:
I didn’t like it that much.
Me neither.
An alternative to “Me too” is “So do/did/have/should I” (depending on the required auxiliary verb: do, did, have or should):
I’ve seen that movie before.
So have I. (<– use auxiliary verb “have” when responding to a present perfect statement)
I saw it last week.
So did I. (<– use auxiliary verb “did” when responding to a past simple statement)
An alternative to “Me neither” is “Neither do/did/have/should I” (again, depending on the required auxiliary verb: do, did, have or should):
I haven’t seen that movie.
Neither have I.
I didn’t like it very much.
Neither did I.
OR “I don’t/didn’t/haven’t/shouldn’t either” (Here, use ‘either’ instead of ‘neither’ because the auxiliary already makes the statement negative. Using ‘neither’ would create a double negative.)
I didn’t like it very much.
I didn’t either.
To disagree with either a positive or a negative statement, you only need to use the auxiliary verb:
I really liked that movie.
I didn’t.
OR
I haven’t seen that movie yet.
I have.