"It is quite common to hear English native speakers use this idiom: “go back to square one” Have you come across it before? It means to start from the beginning.  It can be a great idiom to use when you meet a colleague you have not seen for a while and you want to reconnect with them. To help you, below is an example of using this idiom: ""That is not the right solution to our problem. I think we need to go back to square one with that.""   Let’s try to use it this week when you can.