When someone asks you if you are free? How to reply?

When someone asks if you are free, you can answer in the following ways according to the situation:

1. If you are free, you can directly answer "free".

If you are not free, you can answer "Sorry, I am not free now".

If you are not sure whether you are free, you can thank the other person for asking first, and then say, "Let me have a look at my schedule and I will get back to you as soon as possible."

If you want to refuse the other person's request, you can say, "I really want to help, but I have XXX things to do now, so I can't help you."

Please note that when you answer, you should be as polite and friendly as possible, and clearly express your position and needs. This helps to maintain good interpersonal relationships.