Formal:
* 사랑합니다 (saranghamnida): This is the most formal and respectful way to say "I love you." It's often used for someone you respect greatly, like an elder or someone you're in a formal relationship with.
Informal:
* 사랑해 (saranghae): This is the most common way to say "I love you" to someone you're close with, like a friend, family member, or romantic partner.
* 널 사랑해 (neol saranghae): This is a more affectionate way to say "I love you" to someone you're close with. It translates literally as "I love you."
Other options:
* 좋아해 (joahae): This means "I like you," but it can also be used to express love, especially in a romantic context.
* 너무 좋아해 (neomu joahae): This means "I like you very much" and is a more intense way to express affection.
Note:
* The choice of which phrase to use depends on the context and the relationship you have with the person.
* It's generally better to start with a more informal phrase like "사랑해" and then progress to a more formal phrase like "사랑합니다" as the relationship develops.
I hope this helps! Let me know if you have any other questions.