Listening to his story, I deeply empathized.

The sentence is superfluous, it can be shortened.

I think this project is useless.

He should stop wasting his money.

He is wasting money on gambling.

He used my car without permission.

He likes to chatter.

They were shooting the breeze while drinking coffee.

Emperor Ōjin, also known as Homuda, was the 15th emperor of Japan.

Please contact him via the fixed-line telephone.