Maybe your question is focused on "everyday spoken Japanese". In this context, "I hate you" is easier."Daikirai!(大嫌い!）" or "Daikkirai!(大っ嫌い！) as Mr. zigokunokaze told above and that is a literally meaning/translation. I've heard some say "Saitei!(最低！= at the lowest ( rudest) person ）" in daily life. The difficult one is "I love you". In my experience, I've never heard any Japanese say that phrase in everyday-life. They seem not to say that words without at some special occasions as proposal of marriage.

Hello Lucy, I only know this one "愛してる"

(わたしは あなたが) 愛しています (wadashiwa anataga) aisite imasu (わたしは あなたが) 大嫌いです (wadashiwa anataga) daikirai desu

愛してる。aisiteru. （あなたが）大嫌いだ。(anataga)daikiraida.