Formal:
* 我爱你 (wǒ ài nǐ) - This is the most common and direct translation of "I love you." It's suitable for romantic relationships, family, and close friends.
Informal:
* 我喜欢你 (wǒ xǐhuān nǐ) - This means "I like you" and is more casual than "I love you." It can be used in romantic or platonic contexts.
* 我爱你 (wǒ ài nǐ) - While technically the same as the formal translation, it can be used informally with close friends or family.
Other expressions:
* 我深深地爱着你 (wǒ shēnshēn de ài zhe nǐ) - This translates to "I love you deeply" and is more romantic and passionate.
* 我爱死你了 (wǒ ài sǐ le nǐ) - This is a very informal way to say "I love you," often used with friends or significant others. It literally means "I'm going to die from loving you," and is a playful expression.
The best way to say "I love you" in Mandarin depends on the specific situation and your relationship with the person you're talking to.