2 Nephi 2:22

And now, behold, if Adam had not transgressed, he would not have fallen; but he would have remained in the garden of Eden. And all things which were created, must have remained in the same state which they were, after that they were created; and they must have remained forever, and had no end.

If Adam had not broken the rule, he would not have fallen. He would have stayed in the garden of Eden. Everything that was created would have stayed the same forever.

If Adam hadn’t disobeyed, he wouldn’t have fallen. He would have stayed in the Garden of Eden. Everything that was created would have stayed exactly as it was when it was made, and it would have stayed that way forever.