When you have the same opinion about something as another person you agree with them.
Agree is a verb; the opposite verb is disagree. The noun form is agreement; the opposite word is disagreement.
We should leave early tomorrow.
I agree (with you)
I think Taylor Swift is the best singer.
I totally agree.
We should go to that new Italian resturant.
I'm with you.
We should have invited Sabine.
I feel/think the same.
It was much easier than we thought.
True.
We should all take good walking shoes.
I think so too.
We really must plan a party for Ahmed.
I couldn't agree more.
Let's watch a movie
Absolutely.
She looks like my sister.
You're absolutely right.
I was born in London.
Me too.
I love learning English.
So do I.
I'm Spanish.
So am I.
I've been to Scotland.
So have I.
I can't swim.
Neither can I.
I shouldn't smoke.
Neither should I.
I don't like winter.
I don't either.
I don't eat meat.
Me neither.
I'm not going out this weekend.
Nor me.
