How to use "constant" in a sentence

Inside the room everything is silent, apart from the slow and constant tick of the small clock on the wall, and the fast, irregular beat of your heart.

It is like constant thunder in the distance

It costs a lot to live in an earth apartment - you need constant lighting and heating

Inside, the lights were so bright they were almost blinding, and there was a constant soft noise of people working on computers

There's so much going on, so much to see and do, constant excitement, so people get out of their normal rhythms

And the ache isn't constant anymore

These worries stayed on my mind and I grew very tired of the curate's constant talking