Agree With, On, About, and To: Choosing the Right Preposition

Agree is simple in meaning but flexible in grammar. The preposition changes according to whether you mean a person, an opinion, a decision, a topic, or acceptance of a proposal.

Agree with

Use agree with a person, statement, opinion, or idea.

• I agree with you.
• She agrees with the main conclusion.
• I don’t completely agree with that interpretation.

Agree on

Use agree on when people reach the same decision about a specific plan, date, price, method, or term.

• We agreed on a deadline.
• The teams agreed on the final wording.

Agree about

Use agree about for having the same opinion regarding a topic or issue. It is especially common in negatives when people differ.

• We agree about most things.
• They couldn’t agree about the budget priorities.

Agree to

Use agree to a proposal, request, condition, arrangement, or action. With a verb, use agree to do.

• The client agreed to the revised terms.
• She agreed to speak at the conference.

Agree that

A that-clause is often the clearest way to express a shared proposition.

• We agree that the process needs improvement.

Common mistakes to avoid

• I agree to you → I agree with you.
• We agreed with a price → usually We agreed on a price.

Quick practice

1. Choose: “I agree ___ your analysis.”
2. Choose: “We finally agreed ___ the meeting date.”
3. Complete: “He agreed ___ join the project.”

Suggested answers: 1. with; 2. on; 3. to.

Key takeaway

Match the preposition to the relationship: person/opinion = with; shared decision = on; topic = about; accepted proposal/action = to.