Do i文:What is the difference between 要and 会？

要：want to,demand to, request to, ask to ； 会： be able to.I will do this.我要做这件事Do i文。I am going to do that.我将会做那件事。I am going to do this.我要做这件事。I am going to do that.我打算(将会)去做那件事。I will probably do this.我也许会这样做。I will probably do that.我也许会做那件事。