Reverse of E1cB reaction As we know that the first step of E1cB step is second of E1 and vice versa. So can we say that by reversing E1cB reaction we will get E1 reaction.

In this the main problem which I am getting is in E1cB reaction carbanion is formed while in E1 carbocation. By reversing we will convert carbanion into neutral not into carbocation. So is this possible?
I asked my teacher about it and he told me that no it is not possible as these two are totally different mechanism.            

Sorry for english or improper answer( if it is so) as my teacher told me this much only so I can't say much clearly about it.