For the sinful nature desires what is contrary to the Spirit, and the Spirit what is contrary to the sinful nature. They are in conflict with each other, so that you are not to do whatever you want. (NIV)
For the desires of the flesh are opposed to the [Holy] Spirit, and the [desires of the] Spirit are opposed to the flesh (godless human nature); for these are antagonistic to each other [continually withstanding and in conflict with each other], so that you are not free but are prevented from doing what you desire to do. (AMP)
For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would. (KJV)