Formal:
* 貴方(あなた) が好きです (anata ga suki desu) - This is the most literal translation, and it's very formal. It's best used for someone you don't know well or someone you want to show respect to.
* お好きですか (suki desu ka) - This is a more polite and indirect way of saying "I like you." It literally means "Do you like...?" and is commonly used in situations where you want to express your liking for something or someone without being too direct.
Informal:
* 好き (suki) - This is the most common and casual way to say "I like you." It's suitable for friends and close acquaintances.
* 好きだよ (suki da yo) - This is a slightly more affectionate way of saying "I like you." It's still informal, but it adds a bit more warmth and intimacy.
* キミが好き (kimi ga suki) - This is a more playful and endearing way of saying "I like you." It uses "kimi" (you), which is a casual term for addressing someone.
Romantic:
* 好きになってもいいですか (suki ni natte mo ii desu ka) - This means "May I like you?" It's a romantic way of expressing your feelings and asking for permission to pursue the person.
* 愛してる (aishiteru) - This means "I love you" and is a very strong expression of romantic love. It's usually reserved for serious relationships.
It's important to choose the right phrase based on your relationship with the person you are speaking to and the context of the situation.