1.agree (to sth) 意为“同意；愿意；答应（某事物）”.如：Is he going to agree to our suggestion?他会同意我们的建议吗?
2.agree with sb 意为“适合（某人的健康或胃口）”,尤用于否定句或疑问句中.如：The climate there doesn't agree with him.那里的气候对他不合适.
3.agree (with sb) (about / on sth) 意为“同意；（与某人）意见一致”.如：We couldn't agree on a date/ when to meet.关于日期（什么时候见面）,我们没有能取得一致意见.
4.agree sth意为“在某事物上取得一致意见；商定”.如：Can we agree a price?我们能不能商定一个价格?
5.agree (with sth) 意为“与（某事物）相一致；相符合；相吻合”.如：Your thoughts didn't agree with mine.你的想法和我的想法不一致.
6.be agreed（on /about sth）意为“达成协议；意见一致”.如：We are all agreed on the best action.我们都同意这一最佳措施.
7.agree后面还可以接宾语从句,即be agreed that ...如：It was agreed that another meeting was necessary.大家都认为有必要再开一次会.