How do you say are so sweet in Bengali?

There are a few ways to say "you are so sweet" in Bengali, depending on the context and level of formality:

Formal:

* আপনি খুব মিষ্টি (Aapni khub misti) - This is the most formal way to say it, using the respectful pronoun "aapni".

Informal:

* তুমি খুব মিষ্টি (Tumi khub misti) - This is a more casual way to say it, using the informal pronoun "tumi".

* তুই খুব মিষ্টি (Tui khub misti) - This is the most informal way to say it, using the very informal pronoun "tui". This is generally only used with close friends or family.

Other options:

* আপনি অনেক ভালো (Aapni onek bhalo) - "You are very good"

* আপনি অনেক সুন্দর (Aapni onek sundor) - "You are very beautiful"

Remember to choose the appropriate level of formality based on your relationship with the person you are talking to.