Combine animations and general workflow

Hi. I’m pretty new to animations, but after researching forums didnt find an answer to my question. Can you please advice, what is the correct workflow when creating cinematics for a character?
Say, I’ve created first animation just for eye blinking, second one for breathing (chest moving). And I want to create larger (long) animation, where charcter moves, doing something, while blinking and breathing at the same time. Is it correct way of thinking? Or I have to create single sequence, and repetitively add keyframes for blinking/breathing during the whole animation?
I’ve tried to find a way to combine/blend them, but failed for now.
Thank you.