Expressions of agreement

Here are some expressions of agreement in English :

Total agreement :

Absolutely
Exactly
indeed !
I totally agree with you 
I couldn't agree with you more
I couldn't have said it better
We see eye to eye on this


Partial agreement :

You may be right
You might be right
Perhaps you are right
That is true , I suppose
I suppose so
I think you may be right
Possibly