1.I changed my mind
範例：We decided to watch a movie, but then I changed my mind. We went for lunch instead.
2.I had a change of heart
範例：The judge fined him for 1000 gbp, but then had a change of heart since he was a first time offender. So he let the accused get away with much less.
3.Hang on a minute
當你需要更多思考時間來決定時，你可以用Hang on a minute請對方稍等。
4.On second thought
範例：I will speak with the HR manager about the issue, on second thought I think I will make a formal complaint in writing.
5.On reflection/upon reflection
範例：Upon reflection, I decided that our plans to have a vacation this year can wait. We need to save money instead.
6.After further consideration
範例：After further consideration, I decided that Mr. Rogers is probably the best candidate suited for this role. Let’s hire him!!
7.He convinced me to/persuaded me to
範例：I decided to go home and study but he convinced me to wait around with his friends
8.I’m not sure what I was thinking when I…
當你覺得自己原先的決定不合理時，可以使用I’m not sure what I was thinking when I…。
範例：I have to break up with Mark! I’m not sure what I was thinking when I decided to date him.
9.I did a 180
範例：I had decided to stop speaking with my parents, but when I understood that they only wanted the best for me, I did a 180. I started visiting them more often, I just had a more positive approach toward them.