Formal:
* না (na) - This is the most common and formal way to say "no."
Informal:
* না (na) - You can also use "na" informally.
* না মানি (na mani) - This means "I don't agree."
* হবে না (hobe na) - This means "it won't happen."
Other ways to express "no" in Bangla:
* আমি চাই না (ami chai na) - This means "I don't want."
* আমি রাজি নই (ami raji noi) - This means "I don't agree."
The best way to say "no" depends on the situation and your relationship with the person you are talking to.