How do u say I love u in French

Je t'aime.

i love u - Je t'aime

i love u from the bottom of my hart-, hart - je t'aime du fond de mon coeur

i love u meer than words can describe - je t'aime plus que les mots peuvent décrire

i love u so much - Je t'aime tellement

i think it's te amo,or something like that.

Je vous hais tellement que je tiens à vous jeter d'une falaise

Try it. ^^
It means I love u so much that I can't live without you.

Je t'aime. I can speak french and there r also a million other ways of saying how deeply u love someone. Just ask me, i'll know:)