Hello

Most people clear the HPV virus within about two years, and you can only transmit it while you have the virus yourself.  I am honestly not sure if you can absolutely guarantee that you do not have it after your negative checks but I think you can take reassurance from this.  It is also important to remember that it is a very common virus and most sexually active people will have been exposed to it at some point in their lives.  In the vast majority of people it doesn't cause any problems.  I wonder if it would be helpful to have a chat with someone at a sexual health clinic, or possibly your practice nurse or GP.

I hope that is helpful

Martin