French is different than Japanese and Chinese, so it's very short, the most expression/words used for explaim our love is :
Je t'aime !
The pronounciation is :
Je = Huum The "J" is like the "J" of "Japanese" and the "e" is pronounciate like ... eeh hard to explaim... like all "e" you use in end of some words ( "usE" "futurE" "likE"), some people don't pronounciate it but in France is a current tone
t'aime = you have to link the "T" with the rest of the word, (just for the oral, not in writing) so you pronounce "tai" like the "EA" of "Heart", and the "Me" is like "Je" with the same "E" tone, but with "M" like "Miss" !
I don't know if you get it, I'm very good for explaim
(in the origin, it's "Je Toi Aime" in english " I You Love " but as you can see it's totally wrong, not logical and ugly xD so we link the "T" with the next word. It's one of basic French language rule ! So never say "Je Toi Aime" xD)