Situation /<br/><br/>I bought something today. But now I found out it will be cheaper tomorrow.<br/><br/>How should I say this sentence correctly?<br/><br/>If I had known, it will be cheaper, I WOULD buy it tomorrow.<br/><br/>or<br/><br/>If I had known, it will be cheaper, I WOULD HAVE bought it tomorrow.<br/><br/>Thanks much.