The first few verses of Ro 7 clearly show that it is speaking of a former time. Verse 5..."For when we WERE in the flesh..."
The entire middle of Ro 7 is about Paul's former life as a Pharisee; trying to live the Mosaic Law, but failing. And again, a reference to the past in verse 18; (that is, in my flesh).
And the end, especially verse 23; "But I see another law in my members, warring against the law of my mind, and bringing me into captivity to THE LAW OF SIN which is in my members."...points again to a former time. Because....
we read in Romans 8:2...."For the law of the Spirit of life in Christ Jesus hath made me free from THE LAW OF SIN and death.
Why would Paul be subject to something he is free of?
If you could see the truth of Ro 7, and its proximity to Ro 6, which speaks of baptism and the death of the flesh, you would see that Paul is making the past-present transition, and Ro 8 continues on into the life walked in the Spirit.