He lay on his back.

The nurse took care of the patient and nursed them back to health.

I've been suffering from lower back pain for a few days now.

I go back and forth between my home and work every day.

After the failure of our project, we had to go back to square one .

I want to give myself a pat on the back for completing the project ahead of schedule.

I think it's important to take a couple of steps back and reassess the situation.

He could bounce back and forth between different topics effortlessly.