你确定吗英语怎么说

"Are you sure?" is a common phrase in English that can be used to inquire about someone's certainty or confirmation of something. It is often used when the speaker wants to double-check if the other person is certain about their answer or decision. This phrase can be used in both formal and informal settings and is an important part of communication in English. So, if you want to ask someone if they are certain about something, you can simply say "Are you sure?"