You probably remember me not because I am not teaching you. We are becoming more and more known, because I'm an Assistant Professor teaching English as you guys. I will be happy to serve this .
You will recall that I did not because I did not teach you. We are more known since I was an assistant professor of English you. I'm willing to do this.
You don't remember me, because I can teach you. We know each other more, because I'm the assistant teacher of English to you. I am willing to do the job!