Regretting

I don't want to spend the rest of my life regretting it.

It's no use regretting it now.

We are given to regretting our past.

He was already regretting it.

He is regretting his action.

The old Earl said: "We spend one half of our life in regretting the things we did in the other half."

My heart likes what it sees, not too regretting the missed opportunities.

I don't want to spend the rest of my life regretting that I didn't at least try to do that.

If you continue with it, don't you think you'll end up regretting it later on?

He was regretting Maurizio intensely.