I would like to say that I'm pausing / postponing work on something. 

I wasn't sure which of the following is the right way to say it:

1. I'm holding off on it for the time being
2. I'm holding off of it for the time being
3. I'm holding it off for the time being
4. I'm holding off working on it for the time being
5. None of the above, if so what's the "right" way to say it?