+0
Why when expressing agreement in an email or a post, 'agreed' and 'agree' are both used? What is the difference?

For example,

In A's email: B, do you agree with this solution?

In B's email: Agree/Agreed!
1 2
Comments  (Page 2) 

she agreed it yesterday.true or false?

Agreed
Students: Are you brave enough to let our tutors analyse your pronunciation?
I agree
Agreed

I agree

Students: We have free audio pronunciation exercises.