I agree with Devin's answer, but I'll try to explain the format...
"I hope (that) X."
"I hope (that) he loves me."
Notice that a statement follows "I hope", and "that" is implied. So, you just change the statement to a negative sentence.
"I hope he doesn't love me."
"I hope I don't come earlier tomorrow." (The positive sentence should have been, "I hope I come earlier tomorrow.")