We don't consciously think about them, but some part of the brain does the processing.Do you really bother to think which preposition to choose when talking using "agree"?Think about what you have learnt at school. Which do you think is appropriate?I agree _______ his words.
Should I fill in "to" or "with"?
I agree with his suggestion - I think he has suggested the right thing.
I agree to his suggestion - I give permission for the action he has suggested to go ahead.