 Agree, agree with, agree to, agree about, agree on. Which is correct? Number one, I, you, that's a great idea. Agree on, agree for, agree with, agree with. Two, we couldn't, a time for the event. Agree on, agree for, agree with, agree on. Three, he, meet my sister for lunch. Agree, agree to, agreed on, agreed to. Four, they, how to decorate the office. Disagreeed for, disagreed with, disagreed about. Five, you're absolutely right. I couldn't, more. Agree, agree on, agree for, agree. To learn more about this topic, see video at link. Or, check out our websites for more free English learning resources. eslgold.com and freeenglishstudy.com.