I had finished decorating the tree before the guests arrived.
So had I. / I had too. / Me too. / I hadn't.
I visited my grandparents for Christmas last year.
So did I. / I did too. / Me too. / I didn't.
I love decorating the Christmas tree every year.
Me too. / I do too. / So do I. / I don't.
I would buy more gifts if I had a bigger budget.
So would I. / I would too. / Me too. / I wouldn't.
I had been shopping for gifts all day when I found the perfect one.
So had I. / I had too. / Me too. / I hadn't.
I won't send Christmas cards to all my friends.
Nor will I. / I won't either. / I will.
I was baking cookies when the carolers arrived.
So was I. / I was too. / Me too. / I wasn't.
I am not wrapping presents for my family right now.
Neither am I. / I am not either. / I am.
I have already taken off all the Christmas decorations.
So have I. / I have too. / Me too. / I haven't.
I haven't been preparing for Christmas since the start of December.
Neither have I. / I haven't either. / I have.