さっきなんていいかけたの？って英語でなんて言うの？

You interrupt someone to say something important - then wish to revert to the conversation and allow your friend to complete what they were saying.

Sometimes we speak at the same time as another person. You can call this "interrupting someone" or "speaking over someone". "Speaking over someone" has a second meaning. It can mean to purposely talk louder than another person, so that the other person cannot be heard.

In a free flowing conversation it can be easy for the two people talking to occasionally trip over each other in the conversation. If this happens and you do interrupt someone, any of these answers can allow the other person to continue speaking.

When someone is about to say something but you accidentally interrupt them, then you can say: -Sorry. You can go first. -Sorry. What were you about to say? -I'm sorry. You can say what you wanted to say first.

This is an informal way of fixing the situation and it both communicates that you feel bad for having interrupted the person and that you would like to hear what they have to say. Both of these parts are important so that the person whom you are speaking with doesn't feel bad. I hope this helps :)

"I'm sorry, you were saying?" Normally when you ask this question you say it as though you would say something after saying, but leave it having for them to answer. "I'm sorry, were you about to say something?" This is just another way of asking there person what they were going to say before you cut them off.