How to use "breathing" in a sentence

She was breathing with great difficulty, but her face looked peaceful and calm

As he spoke, Valjean's breathing became more painful and he had difficulty moving his arms

She did some deep-breathing exercises, trying to calm herself.

Instead, I was looking at a quick-breathing, desperate creature

The whole creature was breathing heavily

We both sat in complete silence, so we could hardly hear each other breathing

We stood breathing heavily, staring at each other

I stepped over him and stood there breathing hard