I'm fed up with your constant complaining. ✬

The sick man required constant attention. ✬

Constant dripping wears away a stone. ✬

Change is the only constant. ✬

Our ancestors developed massive jaws as a result of constant combat. ✬

The only thing constant in this world is change. ✬

Tom's constant arguing irritates some of his classmates. However, most of the class has just learned to ignore him. ✬

They live in constant fear. ✬

I've been in constant contact with Tom. ✬

I'm tired of Tom's constant complaining. ✬