Formal:
* আমি তোমাকে ভালোবাসি (ami tomakey bhalobasi) - This is the most common and formal way to say "I love you".
* আমি তোমার প্রতি ভালোবাসা পোষণ করি (ami tomar proti bhalobasa poshon kori) - This is a slightly more formal way to say "I love you" and conveys a deeper feeling of love and respect.
Informal:
* আমি তোমাকে ভালোবাসি (ami tomakey bhalobasi) - This is also the informal way to say "I love you".
* তোমাকে ভালোবাসি (tomakey bhalobasi) - This is a shorter and more casual way to say "I love you".
* আমি তোমাকে পছন্দ করি (ami tomakey pochondo kori) - This literally translates to "I like you", but is often used to express love in a more playful or casual way.
The best way to translate "I love you" into Bengali will depend on the situation and the relationship between the speaker and the listener.